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Finding the Fourth Proportional to 17,278.16, 25,917.72 and 4,799.10

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Solution

The fourth proportional to 17,278.16, 25,917.72 and 4,799.10 is: 7,198.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,278.16 : 25,917.72 = 4,799.10 : x
  2. Step 2: Convert to fraction form
    17,278.16/25,917.72 = 4,799.10/x
  3. Step 3: Cross multiply
    17,278.16x = 25,917.72 × 4,799.10
  4. Step 4: Simplify right side
    17,278.16x = 124,381,690.45
  5. Step 5: Solve for x
    x = 124,381,690.45/17,278.16
  6. Step 6: Final answer
    x = 7,198.78

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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.