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Finding the Fourth Proportional to 67,952.20, 93,774.63 and 39,652.42

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Solution

The fourth proportional to 67,952.20, 93,774.63 and 39,652.42 is: 54,720.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,952.20 : 93,774.63 = 39,652.42 : x
  2. Step 2: Convert to fraction form
    67,952.20/93,774.63 = 39,652.42/x
  3. Step 3: Cross multiply
    67,952.20x = 93,774.63 × 39,652.42
  4. Step 4: Simplify right side
    67,952.20x = 3,718,391,014.10
  5. Step 5: Solve for x
    x = 3,718,391,014.10/67,952.20
  6. Step 6: Final answer
    x = 54,720.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.