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Finding the Fourth Proportional to 12,998.44, 17,952.42 and 8,799.40

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Solution

The fourth proportional to 12,998.44, 17,952.42 and 8,799.40 is: 12,153.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,998.44 : 17,952.42 = 8,799.40 : x
  2. Step 2: Convert to fraction form
    12,998.44/17,952.42 = 8,799.40/x
  3. Step 3: Cross multiply
    12,998.44x = 17,952.42 × 8,799.40
  4. Step 4: Simplify right side
    12,998.44x = 157,970,524.55
  5. Step 5: Solve for x
    x = 157,970,524.55/12,998.44
  6. Step 6: Final answer
    x = 12,153.04

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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.