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Finding the Fourth Proportional to 29,651.62, 40,912.55 and 17,712.63

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Solution

The fourth proportional to 29,651.62, 40,912.55 and 17,712.63 is: 24,439.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,651.62 : 40,912.55 = 17,712.63 : x
  2. Step 2: Convert to fraction form
    29,651.62/40,912.55 = 17,712.63/x
  3. Step 3: Cross multiply
    29,651.62x = 40,912.55 × 17,712.63
  4. Step 4: Simplify right side
    29,651.62x = 724,668,567.38
  5. Step 5: Solve for x
    x = 724,668,567.38/29,651.62
  6. Step 6: Final answer
    x = 24,439.43

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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.