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Finding the Fourth Proportional to 86,655.52, 129,987.86 and 24,330.88

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Solution

The fourth proportional to 86,655.52, 129,987.86 and 24,330.88 is: 36,497.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,655.52 : 129,987.86 = 24,330.88 : x
  2. Step 2: Convert to fraction form
    86,655.52/129,987.86 = 24,330.88/x
  3. Step 3: Cross multiply
    86,655.52x = 129,987.86 × 24,330.88
  4. Step 4: Simplify right side
    86,655.52x = 3,162,719,023.12
  5. Step 5: Solve for x
    x = 3,162,719,023.12/86,655.52
  6. Step 6: Final answer
    x = 36,497.61

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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.