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Finding the Fourth Proportional to 64,027.10, 96,040.65 and 17,279.90

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Solution

The fourth proportional to 64,027.10, 96,040.65 and 17,279.90 is: 25,919.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,027.10 : 96,040.65 = 17,279.90 : x
  2. Step 2: Convert to fraction form
    64,027.10/96,040.65 = 17,279.90/x
  3. Step 3: Cross multiply
    64,027.10x = 96,040.65 × 17,279.90
  4. Step 4: Simplify right side
    64,027.10x = 1,659,572,827.94
  5. Step 5: Solve for x
    x = 1,659,572,827.94/64,027.10
  6. Step 6: Final answer
    x = 25,919.85

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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.