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Finding the Fourth Proportional to 17,859.72, 26,787.30 and 4,713.08

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Solution

The fourth proportional to 17,859.72, 26,787.30 and 4,713.08 is: 7,069.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,859.72 : 26,787.30 = 4,713.08 : x
  2. Step 2: Convert to fraction form
    17,859.72/26,787.30 = 4,713.08/x
  3. Step 3: Cross multiply
    17,859.72x = 26,787.30 × 4,713.08
  4. Step 4: Simplify right side
    17,859.72x = 126,250,687.88
  5. Step 5: Solve for x
    x = 126,250,687.88/17,859.72
  6. Step 6: Final answer
    x = 7,069.02

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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.