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Finding the Fourth Proportional to 62,972.76, 86,898.78 and 37,817.40

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Solution

The fourth proportional to 62,972.76, 86,898.78 and 37,817.40 is: 52,185.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,972.76 : 86,898.78 = 37,817.40 : x
  2. Step 2: Convert to fraction form
    62,972.76/86,898.78 = 37,817.40/x
  3. Step 3: Cross multiply
    62,972.76x = 86,898.78 × 37,817.40
  4. Step 4: Simplify right side
    62,972.76x = 3,286,285,922.77
  5. Step 5: Solve for x
    x = 3,286,285,922.77/62,972.76
  6. Step 6: Final answer
    x = 52,185.83

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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.