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Finding the Fourth Proportional to 17,661.90, 26,496.92 and 5,182.88

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Solution

The fourth proportional to 17,661.90, 26,496.92 and 5,182.88 is: 7,775.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,661.90 : 26,496.92 = 5,182.88 : x
  2. Step 2: Convert to fraction form
    17,661.90/26,496.92 = 5,182.88/x
  3. Step 3: Cross multiply
    17,661.90x = 26,496.92 × 5,182.88
  4. Step 4: Simplify right side
    17,661.90x = 137,330,356.73
  5. Step 5: Solve for x
    x = 137,330,356.73/17,661.90
  6. Step 6: Final answer
    x = 7,775.51

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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.