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Finding the Fourth Proportional to 8,737.65, 12,059.62 and 5,202.81

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Solution

The fourth proportional to 8,737.65, 12,059.62 and 5,202.81 is: 7,180.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,737.65 : 12,059.62 = 5,202.81 : x
  2. Step 2: Convert to fraction form
    8,737.65/12,059.62 = 5,202.81/x
  3. Step 3: Cross multiply
    8,737.65x = 12,059.62 × 5,202.81
  4. Step 4: Simplify right side
    8,737.65x = 62,743,898.53
  5. Step 5: Solve for x
    x = 62,743,898.53/8,737.65
  6. Step 6: Final answer
    x = 7,180.87

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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.