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Finding the Fourth Proportional to 6,614.97, 9,129.12 and 4,372.95

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Solution

The fourth proportional to 6,614.97, 9,129.12 and 4,372.95 is: 6,034.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,614.97 : 9,129.12 = 4,372.95 : x
  2. Step 2: Convert to fraction form
    6,614.97/9,129.12 = 4,372.95/x
  3. Step 3: Cross multiply
    6,614.97x = 9,129.12 × 4,372.95
  4. Step 4: Simplify right side
    6,614.97x = 39,921,185.30
  5. Step 5: Solve for x
    x = 39,921,185.30/6,614.97
  6. Step 6: Final answer
    x = 6,034.98

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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.