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Finding the Fourth Proportional to 68,586.61, 102,909.41 and 26,496.32

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Solution

The fourth proportional to 68,586.61, 102,909.41 and 26,496.32 is: 39,755.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,586.61 : 102,909.41 = 26,496.32 : x
  2. Step 2: Convert to fraction form
    68,586.61/102,909.41 = 26,496.32/x
  3. Step 3: Cross multiply
    68,586.61x = 102,909.41 × 26,496.32
  4. Step 4: Simplify right side
    68,586.61x = 2,726,720,389.95
  5. Step 5: Solve for x
    x = 2,726,720,389.95/68,586.61
  6. Step 6: Final answer
    x = 39,755.87

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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.