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Finding the Fourth Proportional to 6,663.24, 9,986.49 and 3,153.24

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Solution

The fourth proportional to 6,663.24, 9,986.49 and 3,153.24 is: 4,725.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,663.24 : 9,986.49 = 3,153.24 : x
  2. Step 2: Convert to fraction form
    6,663.24/9,986.49 = 3,153.24/x
  3. Step 3: Cross multiply
    6,663.24x = 9,986.49 × 3,153.24
  4. Step 4: Simplify right side
    6,663.24x = 31,489,799.73
  5. Step 5: Solve for x
    x = 31,489,799.73/6,663.24
  6. Step 6: Final answer
    x = 4,725.90

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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.