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Finding the Fourth Proportional to 86,505.77, 129,775.97 and 36,585.68

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Solution

The fourth proportional to 86,505.77, 129,775.97 and 36,585.68 is: 54,885.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,505.77 : 129,775.97 = 36,585.68 : x
  2. Step 2: Convert to fraction form
    86,505.77/129,775.97 = 36,585.68/x
  3. Step 3: Cross multiply
    86,505.77x = 129,775.97 × 36,585.68
  4. Step 4: Simplify right side
    86,505.77x = 4,747,941,552.69
  5. Step 5: Solve for x
    x = 4,747,941,552.69/86,505.77
  6. Step 6: Final answer
    x = 54,885.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.