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Finding the Fourth Proportional to 25,793.76, 38,690.68 and 7,325.76

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Solution

The fourth proportional to 25,793.76, 38,690.68 and 7,325.76 is: 10,988.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,793.76 : 38,690.68 = 7,325.76 : x
  2. Step 2: Convert to fraction form
    25,793.76/38,690.68 = 7,325.76/x
  3. Step 3: Cross multiply
    25,793.76x = 38,690.68 × 7,325.76
  4. Step 4: Simplify right side
    25,793.76x = 283,438,635.92
  5. Step 5: Solve for x
    x = 283,438,635.92/25,793.76
  6. Step 6: Final answer
    x = 10,988.65

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Similar ratio
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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.