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Finding the Fourth Proportional to 55,108.50, 76,049.55 and 29,957.82

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Solution

The fourth proportional to 55,108.50, 76,049.55 and 29,957.82 is: 41,341.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,108.50 : 76,049.55 = 29,957.82 : x
  2. Step 2: Convert to fraction form
    55,108.50/76,049.55 = 29,957.82/x
  3. Step 3: Cross multiply
    55,108.50x = 76,049.55 × 29,957.82
  4. Step 4: Simplify right side
    55,108.50x = 2,278,278,729.98
  5. Step 5: Solve for x
    x = 2,278,278,729.98/55,108.50
  6. Step 6: Final answer
    x = 41,341.69

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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.