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Finding the Fourth Proportional to 32,187.70, 44,422.05 and 18,757.90

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Solution

The fourth proportional to 32,187.70, 44,422.05 and 18,757.90 is: 25,887.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,187.70 : 44,422.05 = 18,757.90 : x
  2. Step 2: Convert to fraction form
    32,187.70/44,422.05 = 18,757.90/x
  3. Step 3: Cross multiply
    32,187.70x = 44,422.05 × 18,757.90
  4. Step 4: Simplify right side
    32,187.70x = 833,264,371.70
  5. Step 5: Solve for x
    x = 833,264,371.70/32,187.70
  6. Step 6: Final answer
    x = 25,887.66

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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.