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Finding the Fourth Proportional to 68,624.60, 102,936.90 and 27,066.20

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Solution

The fourth proportional to 68,624.60, 102,936.90 and 27,066.20 is: 40,599.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,624.60 : 102,936.90 = 27,066.20 : x
  2. Step 2: Convert to fraction form
    68,624.60/102,936.90 = 27,066.20/x
  3. Step 3: Cross multiply
    68,624.60x = 102,936.90 × 27,066.20
  4. Step 4: Simplify right side
    68,624.60x = 2,786,110,722.78
  5. Step 5: Solve for x
    x = 2,786,110,722.78/68,624.60
  6. Step 6: Final answer
    x = 40,599.30

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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.