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Finding the Fourth Proportional to 2,348.87, 3,522.68 and 705.43

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Solution

The fourth proportional to 2,348.87, 3,522.68 and 705.43 is: 1,057.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,348.87 : 3,522.68 = 705.43 : x
  2. Step 2: Convert to fraction form
    2,348.87/3,522.68 = 705.43/x
  3. Step 3: Cross multiply
    2,348.87x = 3,522.68 × 705.43
  4. Step 4: Simplify right side
    2,348.87x = 2,485,004.15
  5. Step 5: Solve for x
    x = 2,485,004.15/2,348.87
  6. Step 6: Final answer
    x = 1,057.96

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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.