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Finding the Fourth Proportional to 63,911.10, 95,866.65 and 17,168.70

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Solution

The fourth proportional to 63,911.10, 95,866.65 and 17,168.70 is: 25,753.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,911.10 : 95,866.65 = 17,168.70 : x
  2. Step 2: Convert to fraction form
    63,911.10/95,866.65 = 17,168.70/x
  3. Step 3: Cross multiply
    63,911.10x = 95,866.65 × 17,168.70
  4. Step 4: Simplify right side
    63,911.10x = 1,645,905,753.86
  5. Step 5: Solve for x
    x = 1,645,905,753.86/63,911.10
  6. Step 6: Final answer
    x = 25,753.05

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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.