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Finding the Fourth Proportional to 9,919.73, 13,672.18 and 9,452.60

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Solution

The fourth proportional to 9,919.73, 13,672.18 and 9,452.60 is: 13,028.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,919.73 : 13,672.18 = 9,452.60 : x
  2. Step 2: Convert to fraction form
    9,919.73/13,672.18 = 9,452.60/x
  3. Step 3: Cross multiply
    9,919.73x = 13,672.18 × 9,452.60
  4. Step 4: Simplify right side
    9,919.73x = 129,237,648.67
  5. Step 5: Solve for x
    x = 129,237,648.67/9,919.73
  6. Step 6: Final answer
    x = 13,028.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.