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Finding the Fourth Proportional to 86,215.86, 129,323.79 and 23,884.74

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Solution

The fourth proportional to 86,215.86, 129,323.79 and 23,884.74 is: 35,827.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,215.86 : 129,323.79 = 23,884.74 : x
  2. Step 2: Convert to fraction form
    86,215.86/129,323.79 = 23,884.74/x
  3. Step 3: Cross multiply
    86,215.86x = 129,323.79 × 23,884.74
  4. Step 4: Simplify right side
    86,215.86x = 3,088,865,099.96
  5. Step 5: Solve for x
    x = 3,088,865,099.96/86,215.86
  6. Step 6: Final answer
    x = 35,827.11

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Similar ratio
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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.