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Finding the Fourth Proportional to 12,168.48, 16,793.28 and 7,452.12

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Solution

The fourth proportional to 12,168.48, 16,793.28 and 7,452.12 is: 10,284.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,168.48 : 16,793.28 = 7,452.12 : x
  2. Step 2: Convert to fraction form
    12,168.48/16,793.28 = 7,452.12/x
  3. Step 3: Cross multiply
    12,168.48x = 16,793.28 × 7,452.12
  4. Step 4: Simplify right side
    12,168.48x = 125,145,537.75
  5. Step 5: Solve for x
    x = 125,145,537.75/12,168.48
  6. Step 6: Final answer
    x = 10,284.40

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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.