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Finding the Fourth Proportional to 72,630.31, 108,948.54 and 22,711.34

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Solution

The fourth proportional to 72,630.31, 108,948.54 and 22,711.34 is: 34,067.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,630.31 : 108,948.54 = 22,711.34 : x
  2. Step 2: Convert to fraction form
    72,630.31/108,948.54 = 22,711.34/x
  3. Step 3: Cross multiply
    72,630.31x = 108,948.54 × 22,711.34
  4. Step 4: Simplify right side
    72,630.31x = 2,474,367,334.44
  5. Step 5: Solve for x
    x = 2,474,367,334.44/72,630.31
  6. Step 6: Final answer
    x = 34,067.97

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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.