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Finding the Fourth Proportional to 3,342.84, 5,012.70 and 1,394.52

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Solution

The fourth proportional to 3,342.84, 5,012.70 and 1,394.52 is: 2,091.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,342.84 : 5,012.70 = 1,394.52 : x
  2. Step 2: Convert to fraction form
    3,342.84/5,012.70 = 1,394.52/x
  3. Step 3: Cross multiply
    3,342.84x = 5,012.70 × 1,394.52
  4. Step 4: Simplify right side
    3,342.84x = 6,990,310.40
  5. Step 5: Solve for x
    x = 6,990,310.40/3,342.84
  6. Step 6: Final answer
    x = 2,091.13

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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.