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Finding the Fourth Proportional to 6,691.68, 9,233.94 and 4,038.12

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Solution

The fourth proportional to 6,691.68, 9,233.94 and 4,038.12 is: 5,572.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,691.68 : 9,233.94 = 4,038.12 : x
  2. Step 2: Convert to fraction form
    6,691.68/9,233.94 = 4,038.12/x
  3. Step 3: Cross multiply
    6,691.68x = 9,233.94 × 4,038.12
  4. Step 4: Simplify right side
    6,691.68x = 37,287,757.79
  5. Step 5: Solve for x
    x = 37,287,757.79/6,691.68
  6. Step 6: Final answer
    x = 5,572.26

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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.