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Finding the Fourth Proportional to 86,659.82, 129,997.11 and 24,330.32

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Solution

The fourth proportional to 86,659.82, 129,997.11 and 24,330.32 is: 36,497.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,659.82 : 129,997.11 = 24,330.32 : x
  2. Step 2: Convert to fraction form
    86,659.82/129,997.11 = 24,330.32/x
  3. Step 3: Cross multiply
    86,659.82x = 129,997.11 × 24,330.32
  4. Step 4: Simplify right side
    86,659.82x = 3,162,871,285.38
  5. Step 5: Solve for x
    x = 3,162,871,285.38/86,659.82
  6. Step 6: Final answer
    x = 36,497.55

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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.