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Finding the Fourth Proportional to 17,776.68, 26,649.39 and 7,255.56

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Solution

The fourth proportional to 17,776.68, 26,649.39 and 7,255.56 is: 10,876.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,776.68 : 26,649.39 = 7,255.56 : x
  2. Step 2: Convert to fraction form
    17,776.68/26,649.39 = 7,255.56/x
  3. Step 3: Cross multiply
    17,776.68x = 26,649.39 × 7,255.56
  4. Step 4: Simplify right side
    17,776.68x = 193,356,248.11
  5. Step 5: Solve for x
    x = 193,356,248.11/17,776.68
  6. Step 6: Final answer
    x = 10,876.96

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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.