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Finding the Fourth Proportional to 18,319.59, 25,270.25 and 11,241

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Solution

The fourth proportional to 18,319.59, 25,270.25 and 11,241 is: 15,505.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,319.59 : 25,270.25 = 11,241 : x
  2. Step 2: Convert to fraction form
    18,319.59/25,270.25 = 11,241/x
  3. Step 3: Cross multiply
    18,319.59x = 25,270.25 × 11,241
  4. Step 4: Simplify right side
    18,319.59x = 284,062,824.05
  5. Step 5: Solve for x
    x = 284,062,824.05/18,319.59
  6. Step 6: Final answer
    x = 15,505.96

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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.