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Finding the Fourth Proportional to 62,897.70, 94,335.96 and 17,915.90

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Solution

The fourth proportional to 62,897.70, 94,335.96 and 17,915.90 is: 26,870.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,897.70 : 94,335.96 = 17,915.90 : x
  2. Step 2: Convert to fraction form
    62,897.70/94,335.96 = 17,915.90/x
  3. Step 3: Cross multiply
    62,897.70x = 94,335.96 × 17,915.90
  4. Step 4: Simplify right side
    62,897.70x = 1,690,113,154.08
  5. Step 5: Solve for x
    x = 1,690,113,154.08/62,897.70
  6. Step 6: Final answer
    x = 26,870.83

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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.