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Finding the Fourth Proportional to 31,537.92, 43,523.92 and 17,390.72

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Solution

The fourth proportional to 31,537.92, 43,523.92 and 17,390.72 is: 24,000.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,537.92 : 43,523.92 = 17,390.72 : x
  2. Step 2: Convert to fraction form
    31,537.92/43,523.92 = 17,390.72/x
  3. Step 3: Cross multiply
    31,537.92x = 43,523.92 × 17,390.72
  4. Step 4: Simplify right side
    31,537.92x = 756,912,306.02
  5. Step 5: Solve for x
    x = 756,912,306.02/31,537.92
  6. Step 6: Final answer
    x = 24,000.07

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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.