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Finding the Fourth Proportional to 6,874.95, 9,487.42 and 3,731.14

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Solution

The fourth proportional to 6,874.95, 9,487.42 and 3,731.14 is: 5,148.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,874.95 : 9,487.42 = 3,731.14 : x
  2. Step 2: Convert to fraction form
    6,874.95/9,487.42 = 3,731.14/x
  3. Step 3: Cross multiply
    6,874.95x = 9,487.42 × 3,731.14
  4. Step 4: Simplify right side
    6,874.95x = 35,398,892.26
  5. Step 5: Solve for x
    x = 35,398,892.26/6,874.95
  6. Step 6: Final answer
    x = 5,148.97

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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.