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Finding the Fourth Proportional to 17,751.80, 26,634.72 and 11,176.76

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Solution

The fourth proportional to 17,751.80, 26,634.72 and 11,176.76 is: 16,769.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,751.80 : 26,634.72 = 11,176.76 : x
  2. Step 2: Convert to fraction form
    17,751.80/26,634.72 = 11,176.76/x
  3. Step 3: Cross multiply
    17,751.80x = 26,634.72 × 11,176.76
  4. Step 4: Simplify right side
    17,751.80x = 297,689,873.11
  5. Step 5: Solve for x
    x = 297,689,873.11/17,751.80
  6. Step 6: Final answer
    x = 16,769.56

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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.