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Finding the Fourth Proportional to 17,757.21, 26,628.89 and 6,657.85

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Solution

The fourth proportional to 17,757.21, 26,628.89 and 6,657.85 is: 9,984.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,757.21 : 26,628.89 = 6,657.85 : x
  2. Step 2: Convert to fraction form
    17,757.21/26,628.89 = 6,657.85/x
  3. Step 3: Cross multiply
    17,757.21x = 26,628.89 × 6,657.85
  4. Step 4: Simplify right side
    17,757.21x = 177,291,155.29
  5. Step 5: Solve for x
    x = 177,291,155.29/17,757.21
  6. Step 6: Final answer
    x = 9,984.18

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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.