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Finding the Fourth Proportional to 3,701.43, 5,555.79 and 1,755

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Solution

The fourth proportional to 3,701.43, 5,555.79 and 1,755 is: 2,634.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,701.43 : 5,555.79 = 1,755 : x
  2. Step 2: Convert to fraction form
    3,701.43/5,555.79 = 1,755/x
  3. Step 3: Cross multiply
    3,701.43x = 5,555.79 × 1,755
  4. Step 4: Simplify right side
    3,701.43x = 9,750,411.45
  5. Step 5: Solve for x
    x = 9,750,411.45/3,701.43
  6. Step 6: Final answer
    x = 2,634.23

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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.