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Finding the Fourth Proportional to 74,715, 112,091.70 and 25,467

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Solution

The fourth proportional to 74,715, 112,091.70 and 25,467 is: 38,207.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,715 : 112,091.70 = 25,467 : x
  2. Step 2: Convert to fraction form
    74,715/112,091.70 = 25,467/x
  3. Step 3: Cross multiply
    74,715x = 112,091.70 × 25,467
  4. Step 4: Simplify right side
    74,715x = 2,854,639,323.90
  5. Step 5: Solve for x
    x = 2,854,639,323.90/74,715
  6. Step 6: Final answer
    x = 38,207.04

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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.