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Finding the Fourth Proportional to 9,220.67, 12,731.65 and 7,092.90

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Solution

The fourth proportional to 9,220.67, 12,731.65 and 7,092.90 is: 9,793.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,220.67 : 12,731.65 = 7,092.90 : x
  2. Step 2: Convert to fraction form
    9,220.67/12,731.65 = 7,092.90/x
  3. Step 3: Cross multiply
    9,220.67x = 12,731.65 × 7,092.90
  4. Step 4: Simplify right side
    9,220.67x = 90,304,302.55
  5. Step 5: Solve for x
    x = 90,304,302.55/9,220.67
  6. Step 6: Final answer
    x = 9,793.68

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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.