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Finding the Fourth Proportional to 55,355.67, 83,034.18 and 15,913.13

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Solution

The fourth proportional to 55,355.67, 83,034.18 and 15,913.13 is: 23,869.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,355.67 : 83,034.18 = 15,913.13 : x
  2. Step 2: Convert to fraction form
    55,355.67/83,034.18 = 15,913.13/x
  3. Step 3: Cross multiply
    55,355.67x = 83,034.18 × 15,913.13
  4. Step 4: Simplify right side
    55,355.67x = 1,321,333,285.61
  5. Step 5: Solve for x
    x = 1,321,333,285.61/55,355.67
  6. Step 6: Final answer
    x = 23,869.88

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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.