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Finding the Fourth Proportional to 17,119.40, 25,635.90 and 11,244.20

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Solution

The fourth proportional to 17,119.40, 25,635.90 and 11,244.20 is: 16,837.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,119.40 : 25,635.90 = 11,244.20 : x
  2. Step 2: Convert to fraction form
    17,119.40/25,635.90 = 11,244.20/x
  3. Step 3: Cross multiply
    17,119.40x = 25,635.90 × 11,244.20
  4. Step 4: Simplify right side
    17,119.40x = 288,255,186.78
  5. Step 5: Solve for x
    x = 288,255,186.78/17,119.40
  6. Step 6: Final answer
    x = 16,837.93

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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.