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Finding the Fourth Proportional to 12,062.80, 16,644.72 and 6,757.60

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Solution

The fourth proportional to 12,062.80, 16,644.72 and 6,757.60 is: 9,324.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,062.80 : 16,644.72 = 6,757.60 : x
  2. Step 2: Convert to fraction form
    12,062.80/16,644.72 = 6,757.60/x
  3. Step 3: Cross multiply
    12,062.80x = 16,644.72 × 6,757.60
  4. Step 4: Simplify right side
    12,062.80x = 112,478,359.87
  5. Step 5: Solve for x
    x = 112,478,359.87/12,062.80
  6. Step 6: Final answer
    x = 9,324.40

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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.