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Finding the Fourth Proportional to 17,279.21, 25,918.86 and 4,799.91

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Solution

The fourth proportional to 17,279.21, 25,918.86 and 4,799.91 is: 7,199.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,279.21 : 25,918.86 = 4,799.91 : x
  2. Step 2: Convert to fraction form
    17,279.21/25,918.86 = 4,799.91/x
  3. Step 3: Cross multiply
    17,279.21x = 25,918.86 × 4,799.91
  4. Step 4: Simplify right side
    17,279.21x = 124,408,195.30
  5. Step 5: Solve for x
    x = 124,408,195.30/17,279.21
  6. Step 6: Final answer
    x = 7,199.88

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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.