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Finding the Fourth Proportional to 43,380.80, 59,866.08 and 25,489.28

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Solution

The fourth proportional to 43,380.80, 59,866.08 and 25,489.28 is: 35,175.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,380.80 : 59,866.08 = 25,489.28 : x
  2. Step 2: Convert to fraction form
    43,380.80/59,866.08 = 25,489.28/x
  3. Step 3: Cross multiply
    43,380.80x = 59,866.08 × 25,489.28
  4. Step 4: Simplify right side
    43,380.80x = 1,525,943,275.62
  5. Step 5: Solve for x
    x = 1,525,943,275.62/43,380.80
  6. Step 6: Final answer
    x = 35,175.54

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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.