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Finding the Fourth Proportional to 25,682.68, 38,524.18 and 7,913.12

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Solution

The fourth proportional to 25,682.68, 38,524.18 and 7,913.12 is: 11,869.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,682.68 : 38,524.18 = 7,913.12 : x
  2. Step 2: Convert to fraction form
    25,682.68/38,524.18 = 7,913.12/x
  3. Step 3: Cross multiply
    25,682.68x = 38,524.18 × 7,913.12
  4. Step 4: Simplify right side
    25,682.68x = 304,846,459.24
  5. Step 5: Solve for x
    x = 304,846,459.24/25,682.68
  6. Step 6: Final answer
    x = 11,869.73

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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.