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Finding the Fourth Proportional to 25,898.20, 38,789.70 and 22,442.20

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Solution

The fourth proportional to 25,898.20, 38,789.70 and 22,442.20 is: 33,613.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,898.20 : 38,789.70 = 22,442.20 : x
  2. Step 2: Convert to fraction form
    25,898.20/38,789.70 = 22,442.20/x
  3. Step 3: Cross multiply
    25,898.20x = 38,789.70 × 22,442.20
  4. Step 4: Simplify right side
    25,898.20x = 870,526,205.34
  5. Step 5: Solve for x
    x = 870,526,205.34/25,898.20
  6. Step 6: Final answer
    x = 33,613.39

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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.