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Finding the Fourth Proportional to 86,535.68, 129,816.88 and 36,616.05

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Solution

The fourth proportional to 86,535.68, 129,816.88 and 36,616.05 is: 54,929.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,535.68 : 129,816.88 = 36,616.05 : x
  2. Step 2: Convert to fraction form
    86,535.68/129,816.88 = 36,616.05/x
  3. Step 3: Cross multiply
    86,535.68x = 129,816.88 × 36,616.05
  4. Step 4: Simplify right side
    86,535.68x = 4,753,381,277.38
  5. Step 5: Solve for x
    x = 4,753,381,277.38/86,535.68
  6. Step 6: Final answer
    x = 54,929.73

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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.