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Finding the Fourth Proportional to 30,371.59, 41,910.78 and 16,758.82

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Solution

The fourth proportional to 30,371.59, 41,910.78 and 16,758.82 is: 23,126.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,371.59 : 41,910.78 = 16,758.82 : x
  2. Step 2: Convert to fraction form
    30,371.59/41,910.78 = 16,758.82/x
  3. Step 3: Cross multiply
    30,371.59x = 41,910.78 × 16,758.82
  4. Step 4: Simplify right side
    30,371.59x = 702,375,218.08
  5. Step 5: Solve for x
    x = 702,375,218.08/30,371.59
  6. Step 6: Final answer
    x = 23,126.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.