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Finding the Fourth Proportional to 25,930.80, 38,863.80 and 23,144.40

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Solution

The fourth proportional to 25,930.80, 38,863.80 and 23,144.40 is: 34,687.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,930.80 : 38,863.80 = 23,144.40 : x
  2. Step 2: Convert to fraction form
    25,930.80/38,863.80 = 23,144.40/x
  3. Step 3: Cross multiply
    25,930.80x = 38,863.80 × 23,144.40
  4. Step 4: Simplify right side
    25,930.80x = 899,479,332.72
  5. Step 5: Solve for x
    x = 899,479,332.72/25,930.80
  6. Step 6: Final answer
    x = 34,687.68

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1.5x scale

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.