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Finding the Fourth Proportional to 7,134.70, 9,841.95 and 5,013.49

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Solution

The fourth proportional to 7,134.70, 9,841.95 and 5,013.49 is: 6,915.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,134.70 : 9,841.95 = 5,013.49 : x
  2. Step 2: Convert to fraction form
    7,134.70/9,841.95 = 5,013.49/x
  3. Step 3: Cross multiply
    7,134.70x = 9,841.95 × 5,013.49
  4. Step 4: Simplify right side
    7,134.70x = 49,342,517.91
  5. Step 5: Solve for x
    x = 49,342,517.91/7,134.70
  6. Step 6: Final answer
    x = 6,915.85

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1.5x scale

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.