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Finding the Fourth Proportional to 55,963.80, 84,042.90 and 29,719.80

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Solution

The fourth proportional to 55,963.80, 84,042.90 and 29,719.80 is: 44,631.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,963.80 : 84,042.90 = 29,719.80 : x
  2. Step 2: Convert to fraction form
    55,963.80/84,042.90 = 29,719.80/x
  3. Step 3: Cross multiply
    55,963.80x = 84,042.90 × 29,719.80
  4. Step 4: Simplify right side
    55,963.80x = 2,497,738,179.42
  5. Step 5: Solve for x
    x = 2,497,738,179.42/55,963.80
  6. Step 6: Final answer
    x = 44,631.32

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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.