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Finding the Fourth Proportional to 55,617.80, 76,764.66 and 36,756.68

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Solution

The fourth proportional to 55,617.80, 76,764.66 and 36,756.68 is: 50,732.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,617.80 : 76,764.66 = 36,756.68 : x
  2. Step 2: Convert to fraction form
    55,617.80/76,764.66 = 36,756.68/x
  3. Step 3: Cross multiply
    55,617.80x = 76,764.66 × 36,756.68
  4. Step 4: Simplify right side
    55,617.80x = 2,821,614,042.93
  5. Step 5: Solve for x
    x = 2,821,614,042.93/55,617.80
  6. Step 6: Final answer
    x = 50,732.21

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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.