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Finding the Fourth Proportional to 60,602.10, 90,687.15 and 38,426.10

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Solution

The fourth proportional to 60,602.10, 90,687.15 and 38,426.10 is: 57,502.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,602.10 : 90,687.15 = 38,426.10 : x
  2. Step 2: Convert to fraction form
    60,602.10/90,687.15 = 38,426.10/x
  3. Step 3: Cross multiply
    60,602.10x = 90,687.15 × 38,426.10
  4. Step 4: Simplify right side
    60,602.10x = 3,484,753,494.62
  5. Step 5: Solve for x
    x = 3,484,753,494.62/60,602.10
  6. Step 6: Final answer
    x = 57,502.19

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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.