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Finding the Fourth Proportional to 26,680.59, 40,022.88 and 7,959.15

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Solution

The fourth proportional to 26,680.59, 40,022.88 and 7,959.15 is: 11,939.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,680.59 : 40,022.88 = 7,959.15 : x
  2. Step 2: Convert to fraction form
    26,680.59/40,022.88 = 7,959.15/x
  3. Step 3: Cross multiply
    26,680.59x = 40,022.88 × 7,959.15
  4. Step 4: Simplify right side
    26,680.59x = 318,548,105.35
  5. Step 5: Solve for x
    x = 318,548,105.35/26,680.59
  6. Step 6: Final answer
    x = 11,939.32

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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.