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Finding the Fourth Proportional to 14,263.84, 19,684.23 and 7,890.10

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Solution

The fourth proportional to 14,263.84, 19,684.23 and 7,890.10 is: 10,888.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,263.84 : 19,684.23 = 7,890.10 : x
  2. Step 2: Convert to fraction form
    14,263.84/19,684.23 = 7,890.10/x
  3. Step 3: Cross multiply
    14,263.84x = 19,684.23 × 7,890.10
  4. Step 4: Simplify right side
    14,263.84x = 155,310,543.12
  5. Step 5: Solve for x
    x = 155,310,543.12/14,263.84
  6. Step 6: Final answer
    x = 10,888.41

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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.