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Finding the Fourth Proportional to 8,737.76, 12,059.36 and 5,200.88

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Solution

The fourth proportional to 8,737.76, 12,059.36 and 5,200.88 is: 7,177.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,737.76 : 12,059.36 = 5,200.88 : x
  2. Step 2: Convert to fraction form
    8,737.76/12,059.36 = 5,200.88/x
  3. Step 3: Cross multiply
    8,737.76x = 12,059.36 × 5,200.88
  4. Step 4: Simplify right side
    8,737.76x = 62,719,284.24
  5. Step 5: Solve for x
    x = 62,719,284.24/8,737.76
  6. Step 6: Final answer
    x = 7,177.96

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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.