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Finding the Fourth Proportional to 21,646.59, 32,506.94 and 13,375.68

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Solution

The fourth proportional to 21,646.59, 32,506.94 and 13,375.68 is: 20,086.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,646.59 : 32,506.94 = 13,375.68 : x
  2. Step 2: Convert to fraction form
    21,646.59/32,506.94 = 13,375.68/x
  3. Step 3: Cross multiply
    21,646.59x = 32,506.94 × 13,375.68
  4. Step 4: Simplify right side
    21,646.59x = 434,802,427.22
  5. Step 5: Solve for x
    x = 434,802,427.22/21,646.59
  6. Step 6: Final answer
    x = 20,086.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.