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Finding the Fourth Proportional to 58,640.16, 87,938.16 and 27,031.20

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Solution

The fourth proportional to 58,640.16, 87,938.16 and 27,031.20 is: 40,536.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,640.16 : 87,938.16 = 27,031.20 : x
  2. Step 2: Convert to fraction form
    58,640.16/87,938.16 = 27,031.20/x
  3. Step 3: Cross multiply
    58,640.16x = 87,938.16 × 27,031.20
  4. Step 4: Simplify right side
    58,640.16x = 2,377,073,990.59
  5. Step 5: Solve for x
    x = 2,377,073,990.59/58,640.16
  6. Step 6: Final answer
    x = 40,536.62

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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.