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Finding the Fourth Proportional to 74,464.32, 111,691.02 and 21,877.92

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Solution

The fourth proportional to 74,464.32, 111,691.02 and 21,877.92 is: 32,815.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,464.32 : 111,691.02 = 21,877.92 : x
  2. Step 2: Convert to fraction form
    74,464.32/111,691.02 = 21,877.92/x
  3. Step 3: Cross multiply
    74,464.32x = 111,691.02 × 21,877.92
  4. Step 4: Simplify right side
    74,464.32x = 2,443,567,200.28
  5. Step 5: Solve for x
    x = 2,443,567,200.28/74,464.32
  6. Step 6: Final answer
    x = 32,815.28

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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.