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Finding the Fourth Proportional to 68,651.52, 94,717.08 and 38,432.40

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Solution

The fourth proportional to 68,651.52, 94,717.08 and 38,432.40 is: 53,024.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,651.52 : 94,717.08 = 38,432.40 : x
  2. Step 2: Convert to fraction form
    68,651.52/94,717.08 = 38,432.40/x
  3. Step 3: Cross multiply
    68,651.52x = 94,717.08 × 38,432.40
  4. Step 4: Simplify right side
    68,651.52x = 3,640,204,705.39
  5. Step 5: Solve for x
    x = 3,640,204,705.39/68,651.52
  6. Step 6: Final answer
    x = 53,024.39

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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.