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Finding the Fourth Proportional to 26,458.80, 39,691.44 and 11,671.44

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Solution

The fourth proportional to 26,458.80, 39,691.44 and 11,671.44 is: 17,508.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,458.80 : 39,691.44 = 11,671.44 : x
  2. Step 2: Convert to fraction form
    26,458.80/39,691.44 = 11,671.44/x
  3. Step 3: Cross multiply
    26,458.80x = 39,691.44 × 11,671.44
  4. Step 4: Simplify right side
    26,458.80x = 463,256,260.47
  5. Step 5: Solve for x
    x = 463,256,260.47/26,458.80
  6. Step 6: Final answer
    x = 17,508.59

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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.