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Finding the Fourth Proportional to 25,589.70, 38,384.55 and 8,061.30

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Solution

The fourth proportional to 25,589.70, 38,384.55 and 8,061.30 is: 12,091.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,589.70 : 38,384.55 = 8,061.30 : x
  2. Step 2: Convert to fraction form
    25,589.70/38,384.55 = 8,061.30/x
  3. Step 3: Cross multiply
    25,589.70x = 38,384.55 × 8,061.30
  4. Step 4: Simplify right side
    25,589.70x = 309,429,372.92
  5. Step 5: Solve for x
    x = 309,429,372.92/25,589.70
  6. Step 6: Final answer
    x = 12,091.95

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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.