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Finding the Fourth Proportional to 4,679.43, 7,017.08 and 1,755.69

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Solution

The fourth proportional to 4,679.43, 7,017.08 and 1,755.69 is: 2,632.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,679.43 : 7,017.08 = 1,755.69 : x
  2. Step 2: Convert to fraction form
    4,679.43/7,017.08 = 1,755.69/x
  3. Step 3: Cross multiply
    4,679.43x = 7,017.08 × 1,755.69
  4. Step 4: Simplify right side
    4,679.43x = 12,319,782.10
  5. Step 5: Solve for x
    x = 12,319,782.10/4,679.43
  6. Step 6: Final answer
    x = 2,632.75

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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.