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Finding the Fourth Proportional to 8,700.72, 13,050.54 and 3,766.92

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Solution

The fourth proportional to 8,700.72, 13,050.54 and 3,766.92 is: 5,650.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,700.72 : 13,050.54 = 3,766.92 : x
  2. Step 2: Convert to fraction form
    8,700.72/13,050.54 = 3,766.92/x
  3. Step 3: Cross multiply
    8,700.72x = 13,050.54 × 3,766.92
  4. Step 4: Simplify right side
    8,700.72x = 49,160,340.14
  5. Step 5: Solve for x
    x = 49,160,340.14/8,700.72
  6. Step 6: Final answer
    x = 5,650.15

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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.