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Finding the Fourth Proportional to 43,965.80, 65,902.22 and 14,375.72

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Solution

The fourth proportional to 43,965.80, 65,902.22 and 14,375.72 is: 21,548.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,965.80 : 65,902.22 = 14,375.72 : x
  2. Step 2: Convert to fraction form
    43,965.80/65,902.22 = 14,375.72/x
  3. Step 3: Cross multiply
    43,965.80x = 65,902.22 × 14,375.72
  4. Step 4: Simplify right side
    43,965.80x = 947,391,862.10
  5. Step 5: Solve for x
    x = 947,391,862.10/43,965.80
  6. Step 6: Final answer
    x = 21,548.38

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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.