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Finding the Fourth Proportional to 29,081.80, 43,655.10 and 15,959.80

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Solution

The fourth proportional to 29,081.80, 43,655.10 and 15,959.80 is: 23,957.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,081.80 : 43,655.10 = 15,959.80 : x
  2. Step 2: Convert to fraction form
    29,081.80/43,655.10 = 15,959.80/x
  3. Step 3: Cross multiply
    29,081.80x = 43,655.10 × 15,959.80
  4. Step 4: Simplify right side
    29,081.80x = 696,726,664.98
  5. Step 5: Solve for x
    x = 696,726,664.98/29,081.80
  6. Step 6: Final answer
    x = 23,957.48

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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.