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Finding the Fourth Proportional to 2,692.43, 4,039.10 and 1,048.53

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Solution

The fourth proportional to 2,692.43, 4,039.10 and 1,048.53 is: 1,572.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,692.43 : 4,039.10 = 1,048.53 : x
  2. Step 2: Convert to fraction form
    2,692.43/4,039.10 = 1,048.53/x
  3. Step 3: Cross multiply
    2,692.43x = 4,039.10 × 1,048.53
  4. Step 4: Simplify right side
    2,692.43x = 4,235,112.28
  5. Step 5: Solve for x
    x = 4,235,112.28/2,692.43
  6. Step 6: Final answer
    x = 1,572.97

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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.