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Finding the Fourth Proportional to 13,959.22, 20,910.52 and 6,452.10

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Solution

The fourth proportional to 13,959.22, 20,910.52 and 6,452.10 is: 9,665.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,959.22 : 20,910.52 = 6,452.10 : x
  2. Step 2: Convert to fraction form
    13,959.22/20,910.52 = 6,452.10/x
  3. Step 3: Cross multiply
    13,959.22x = 20,910.52 × 6,452.10
  4. Step 4: Simplify right side
    13,959.22x = 134,916,766.09
  5. Step 5: Solve for x
    x = 134,916,766.09/13,959.22
  6. Step 6: Final answer
    x = 9,665.06

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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.