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Finding the Fourth Proportional to 55,570.74, 76,694.49 and 41,398.98

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Solution

The fourth proportional to 55,570.74, 76,694.49 and 41,398.98 is: 57,135.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,570.74 : 76,694.49 = 41,398.98 : x
  2. Step 2: Convert to fraction form
    55,570.74/76,694.49 = 41,398.98/x
  3. Step 3: Cross multiply
    55,570.74x = 76,694.49 × 41,398.98
  4. Step 4: Simplify right side
    55,570.74x = 3,175,073,657.62
  5. Step 5: Solve for x
    x = 3,175,073,657.62/55,570.74
  6. Step 6: Final answer
    x = 57,135.71

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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.