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Finding the Fourth Proportional to 63,412.14, 87,523.11 and 39,534.20

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Solution

The fourth proportional to 63,412.14, 87,523.11 and 39,534.20 is: 54,566.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,412.14 : 87,523.11 = 39,534.20 : x
  2. Step 2: Convert to fraction form
    63,412.14/87,523.11 = 39,534.20/x
  3. Step 3: Cross multiply
    63,412.14x = 87,523.11 × 39,534.20
  4. Step 4: Simplify right side
    63,412.14x = 3,460,156,160.93
  5. Step 5: Solve for x
    x = 3,460,156,160.93/63,412.14
  6. Step 6: Final answer
    x = 54,566.15

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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.