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Finding the Fourth Proportional to 25,086.59, 34,620.59 and 15,013.12

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Solution

The fourth proportional to 25,086.59, 34,620.59 and 15,013.12 is: 20,718.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,086.59 : 34,620.59 = 15,013.12 : x
  2. Step 2: Convert to fraction form
    25,086.59/34,620.59 = 15,013.12/x
  3. Step 3: Cross multiply
    25,086.59x = 34,620.59 × 15,013.12
  4. Step 4: Simplify right side
    25,086.59x = 519,763,023.12
  5. Step 5: Solve for x
    x = 519,763,023.12/25,086.59
  6. Step 6: Final answer
    x = 20,718.76

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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.