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Finding the Fourth Proportional to 55,046.87, 75,946.38 and 38,044.99

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Solution

The fourth proportional to 55,046.87, 75,946.38 and 38,044.99 is: 52,489.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,046.87 : 75,946.38 = 38,044.99 : x
  2. Step 2: Convert to fraction form
    55,046.87/75,946.38 = 38,044.99/x
  3. Step 3: Cross multiply
    55,046.87x = 75,946.38 × 38,044.99
  4. Step 4: Simplify right side
    55,046.87x = 2,889,379,540.91
  5. Step 5: Solve for x
    x = 2,889,379,540.91/55,046.87
  6. Step 6: Final answer
    x = 52,489.45

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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.