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Finding the Fourth Proportional to 26,920.17, 40,386.65 and 8,452.17

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Solution

The fourth proportional to 26,920.17, 40,386.65 and 8,452.17 is: 12,680.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,920.17 : 40,386.65 = 8,452.17 : x
  2. Step 2: Convert to fraction form
    26,920.17/40,386.65 = 8,452.17/x
  3. Step 3: Cross multiply
    26,920.17x = 40,386.65 × 8,452.17
  4. Step 4: Simplify right side
    26,920.17x = 341,354,789.27
  5. Step 5: Solve for x
    x = 341,354,789.27/26,920.17
  6. Step 6: Final answer
    x = 12,680.26

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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.