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Finding the Fourth Proportional to 68,963.79, 95,172.50 and 38,748.52

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Solution

The fourth proportional to 68,963.79, 95,172.50 and 38,748.52 is: 53,474.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,963.79 : 95,172.50 = 38,748.52 : x
  2. Step 2: Convert to fraction form
    68,963.79/95,172.50 = 38,748.52/x
  3. Step 3: Cross multiply
    68,963.79x = 95,172.50 × 38,748.52
  4. Step 4: Simplify right side
    68,963.79x = 3,687,793,519.70
  5. Step 5: Solve for x
    x = 3,687,793,519.70/68,963.79
  6. Step 6: Final answer
    x = 53,474.35

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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.