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Finding the Fourth Proportional to 6,909.08, 9,531.45 and 4,254.92

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Solution

The fourth proportional to 6,909.08, 9,531.45 and 4,254.92 is: 5,869.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,909.08 : 9,531.45 = 4,254.92 : x
  2. Step 2: Convert to fraction form
    6,909.08/9,531.45 = 4,254.92/x
  3. Step 3: Cross multiply
    6,909.08x = 9,531.45 × 4,254.92
  4. Step 4: Simplify right side
    6,909.08x = 40,555,557.23
  5. Step 5: Solve for x
    x = 40,555,557.23/6,909.08
  6. Step 6: Final answer
    x = 5,869.89

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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.