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Finding the Fourth Proportional to 74,711.70, 112,067.55 and 22,121.10

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Solution

The fourth proportional to 74,711.70, 112,067.55 and 22,121.10 is: 33,181.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,711.70 : 112,067.55 = 22,121.10 : x
  2. Step 2: Convert to fraction form
    74,711.70/112,067.55 = 22,121.10/x
  3. Step 3: Cross multiply
    74,711.70x = 112,067.55 × 22,121.10
  4. Step 4: Simplify right side
    74,711.70x = 2,479,057,480.31
  5. Step 5: Solve for x
    x = 2,479,057,480.31/74,711.70
  6. Step 6: Final answer
    x = 33,181.65

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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.