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Finding the Fourth Proportional to 14,221.41, 19,624.19 and 7,934.19

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Solution

The fourth proportional to 14,221.41, 19,624.19 and 7,934.19 is: 10,948.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,221.41 : 19,624.19 = 7,934.19 : x
  2. Step 2: Convert to fraction form
    14,221.41/19,624.19 = 7,934.19/x
  3. Step 3: Cross multiply
    14,221.41x = 19,624.19 × 7,934.19
  4. Step 4: Simplify right side
    14,221.41x = 155,702,012.39
  5. Step 5: Solve for x
    x = 155,702,012.39/14,221.41
  6. Step 6: Final answer
    x = 10,948.42

Related Problems

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Half scale
Find fourth proportional to 28,442.82, 39,248.37 and 15,868.38
Double scale
Find fourth proportional to 14,222.41, 19,625.56 and 7,935.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.