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Finding the Fourth Proportional to 55,042.60, 75,957.54 and 29,891.56

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Solution

The fourth proportional to 55,042.60, 75,957.54 and 29,891.56 is: 41,249.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,042.60 : 75,957.54 = 29,891.56 : x
  2. Step 2: Convert to fraction form
    55,042.60/75,957.54 = 29,891.56/x
  3. Step 3: Cross multiply
    55,042.60x = 75,957.54 × 29,891.56
  4. Step 4: Simplify right side
    55,042.60x = 2,270,489,364.36
  5. Step 5: Solve for x
    x = 2,270,489,364.36/55,042.60
  6. Step 6: Final answer
    x = 41,249.68

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1.5x scale

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.