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Finding the Fourth Proportional to 6,691.92, 10,038.20 and 3,404.08

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Solution

The fourth proportional to 6,691.92, 10,038.20 and 3,404.08 is: 5,106.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,691.92 : 10,038.20 = 3,404.08 : x
  2. Step 2: Convert to fraction form
    6,691.92/10,038.20 = 3,404.08/x
  3. Step 3: Cross multiply
    6,691.92x = 10,038.20 × 3,404.08
  4. Step 4: Simplify right side
    6,691.92x = 34,170,835.86
  5. Step 5: Solve for x
    x = 34,170,835.86/6,691.92
  6. Step 6: Final answer
    x = 5,106.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.