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Finding the Fourth Proportional to 8,318.52, 12,477.72 and 2,474.70

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Solution

The fourth proportional to 8,318.52, 12,477.72 and 2,474.70 is: 3,712.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.52 : 12,477.72 = 2,474.70 : x
  2. Step 2: Convert to fraction form
    8,318.52/12,477.72 = 2,474.70/x
  3. Step 3: Cross multiply
    8,318.52x = 12,477.72 × 2,474.70
  4. Step 4: Simplify right side
    8,318.52x = 30,878,613.68
  5. Step 5: Solve for x
    x = 30,878,613.68/8,318.52
  6. Step 6: Final answer
    x = 3,712.03

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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.