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Finding the Fourth Proportional to 67,930.10, 101,895.08 and 25,800.11

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Solution

The fourth proportional to 67,930.10, 101,895.08 and 25,800.11 is: 38,700.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,930.10 : 101,895.08 = 25,800.11 : x
  2. Step 2: Convert to fraction form
    67,930.10/101,895.08 = 25,800.11/x
  3. Step 3: Cross multiply
    67,930.10x = 101,895.08 × 25,800.11
  4. Step 4: Simplify right side
    67,930.10x = 2,628,904,589.25
  5. Step 5: Solve for x
    x = 2,628,904,589.25/67,930.10
  6. Step 6: Final answer
    x = 38,700.14

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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.