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Finding the Fourth Proportional to 86,661.84, 119,591.84 and 48,422.14

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Solution

The fourth proportional to 86,661.84, 119,591.84 and 48,422.14 is: 66,821.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,661.84 : 119,591.84 = 48,422.14 : x
  2. Step 2: Convert to fraction form
    86,661.84/119,591.84 = 48,422.14/x
  3. Step 3: Cross multiply
    86,661.84x = 119,591.84 × 48,422.14
  4. Step 4: Simplify right side
    86,661.84x = 5,790,892,819.34
  5. Step 5: Solve for x
    x = 5,790,892,819.34/86,661.84
  6. Step 6: Final answer
    x = 66,821.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.