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Finding the Fourth Proportional to 55,616.80, 76,763.28 and 36,755.68

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Solution

The fourth proportional to 55,616.80, 76,763.28 and 36,755.68 is: 50,730.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,616.80 : 76,763.28 = 36,755.68 : x
  2. Step 2: Convert to fraction form
    55,616.80/76,763.28 = 36,755.68/x
  3. Step 3: Cross multiply
    55,616.80x = 76,763.28 × 36,755.68
  4. Step 4: Simplify right side
    55,616.80x = 2,821,486,555.43
  5. Step 5: Solve for x
    x = 2,821,486,555.43/55,616.80
  6. Step 6: Final answer
    x = 50,730.83

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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.