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Finding the Fourth Proportional to 17,948.21, 26,920.22 and 4,801.61

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Solution

The fourth proportional to 17,948.21, 26,920.22 and 4,801.61 is: 7,201.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,948.21 : 26,920.22 = 4,801.61 : x
  2. Step 2: Convert to fraction form
    17,948.21/26,920.22 = 4,801.61/x
  3. Step 3: Cross multiply
    17,948.21x = 26,920.22 × 4,801.61
  4. Step 4: Simplify right side
    17,948.21x = 129,260,262.95
  5. Step 5: Solve for x
    x = 129,260,262.95/17,948.21
  6. Step 6: Final answer
    x = 7,201.85

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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.