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Finding the Fourth Proportional to 82,016.70, 123,025.05 and 26,612.70

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Solution

The fourth proportional to 82,016.70, 123,025.05 and 26,612.70 is: 39,919.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,016.70 : 123,025.05 = 26,612.70 : x
  2. Step 2: Convert to fraction form
    82,016.70/123,025.05 = 26,612.70/x
  3. Step 3: Cross multiply
    82,016.70x = 123,025.05 × 26,612.70
  4. Step 4: Simplify right side
    82,016.70x = 3,274,028,748.14
  5. Step 5: Solve for x
    x = 3,274,028,748.14/82,016.70
  6. Step 6: Final answer
    x = 39,919.05

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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.