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Finding the Fourth Proportional to 58,717.56, 80,990.10 and 37,487.28

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Solution

The fourth proportional to 58,717.56, 80,990.10 and 37,487.28 is: 51,706.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,717.56 : 80,990.10 = 37,487.28 : x
  2. Step 2: Convert to fraction form
    58,717.56/80,990.10 = 37,487.28/x
  3. Step 3: Cross multiply
    58,717.56x = 80,990.10 × 37,487.28
  4. Step 4: Simplify right side
    58,717.56x = 3,036,098,555.93
  5. Step 5: Solve for x
    x = 3,036,098,555.93/58,717.56
  6. Step 6: Final answer
    x = 51,706.82

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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.