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Finding the Fourth Proportional to 17,279.68, 25,919.16 and 4,967.68

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Solution

The fourth proportional to 17,279.68, 25,919.16 and 4,967.68 is: 7,451.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,279.68 : 25,919.16 = 4,967.68 : x
  2. Step 2: Convert to fraction form
    17,279.68/25,919.16 = 4,967.68/x
  3. Step 3: Cross multiply
    17,279.68x = 25,919.16 × 4,967.68
  4. Step 4: Simplify right side
    17,279.68x = 128,758,092.75
  5. Step 5: Solve for x
    x = 128,758,092.75/17,279.68
  6. Step 6: Final answer
    x = 7,451.42

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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.