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Finding the Fourth Proportional to 86,611.52, 129,902.16 and 24,286.88

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Solution

The fourth proportional to 86,611.52, 129,902.16 and 24,286.88 is: 36,426.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,611.52 : 129,902.16 = 24,286.88 : x
  2. Step 2: Convert to fraction form
    86,611.52/129,902.16 = 24,286.88/x
  3. Step 3: Cross multiply
    86,611.52x = 129,902.16 × 24,286.88
  4. Step 4: Simplify right side
    86,611.52x = 3,154,918,171.66
  5. Step 5: Solve for x
    x = 3,154,918,171.66/86,611.52
  6. Step 6: Final answer
    x = 36,426.08

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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.