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Finding the Fourth Proportional to 38,992.80, 58,489.20 and 23,246.40

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Solution

The fourth proportional to 38,992.80, 58,489.20 and 23,246.40 is: 34,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,992.80 : 58,489.20 = 23,246.40 : x
  2. Step 2: Convert to fraction form
    38,992.80/58,489.20 = 23,246.40/x
  3. Step 3: Cross multiply
    38,992.80x = 58,489.20 × 23,246.40
  4. Step 4: Simplify right side
    38,992.80x = 1,359,663,338.88
  5. Step 5: Solve for x
    x = 1,359,663,338.88/38,992.80
  6. Step 6: Final answer
    x = 34,869.60

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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.