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Finding the Fourth Proportional to 17,190.80, 25,753.80 and 8,842.40

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Solution

The fourth proportional to 17,190.80, 25,753.80 and 8,842.40 is: 13,246.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,190.80 : 25,753.80 = 8,842.40 : x
  2. Step 2: Convert to fraction form
    17,190.80/25,753.80 = 8,842.40/x
  3. Step 3: Cross multiply
    17,190.80x = 25,753.80 × 8,842.40
  4. Step 4: Simplify right side
    17,190.80x = 227,725,401.12
  5. Step 5: Solve for x
    x = 227,725,401.12/17,190.80
  6. Step 6: Final answer
    x = 13,246.93

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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.