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Finding the Fourth Proportional to 17,251.80, 25,877.70 and 12,294.60

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Solution

The fourth proportional to 17,251.80, 25,877.70 and 12,294.60 is: 18,441.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,251.80 : 25,877.70 = 12,294.60 : x
  2. Step 2: Convert to fraction form
    17,251.80/25,877.70 = 12,294.60/x
  3. Step 3: Cross multiply
    17,251.80x = 25,877.70 × 12,294.60
  4. Step 4: Simplify right side
    17,251.80x = 318,155,970.42
  5. Step 5: Solve for x
    x = 318,155,970.42/17,251.80
  6. Step 6: Final answer
    x = 18,441.90

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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.