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Finding the Fourth Proportional to 17,184.80, 25,744.80 and 8,836.40

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Solution

The fourth proportional to 17,184.80, 25,744.80 and 8,836.40 is: 13,237.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,184.80 : 25,744.80 = 8,836.40 : x
  2. Step 2: Convert to fraction form
    17,184.80/25,744.80 = 8,836.40/x
  3. Step 3: Cross multiply
    17,184.80x = 25,744.80 × 8,836.40
  4. Step 4: Simplify right side
    17,184.80x = 227,491,350.72
  5. Step 5: Solve for x
    x = 227,491,350.72/17,184.80
  6. Step 6: Final answer
    x = 13,237.94

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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.