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Finding the Fourth Proportional to 55,043.40, 75,959.73 and 29,892.90

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Solution

The fourth proportional to 55,043.40, 75,959.73 and 29,892.90 is: 41,252.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,043.40 : 75,959.73 = 29,892.90 : x
  2. Step 2: Convert to fraction form
    55,043.40/75,959.73 = 29,892.90/x
  3. Step 3: Cross multiply
    55,043.40x = 75,959.73 × 29,892.90
  4. Step 4: Simplify right side
    55,043.40x = 2,270,656,612.92
  5. Step 5: Solve for x
    x = 2,270,656,612.92/55,043.40
  6. Step 6: Final answer
    x = 41,252.11

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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.