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Finding the Fourth Proportional to 2,495.52, 3,743.49 and 851.40

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Solution

The fourth proportional to 2,495.52, 3,743.49 and 851.40 is: 1,277.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,495.52 : 3,743.49 = 851.40 : x
  2. Step 2: Convert to fraction form
    2,495.52/3,743.49 = 851.40/x
  3. Step 3: Cross multiply
    2,495.52x = 3,743.49 × 851.40
  4. Step 4: Simplify right side
    2,495.52x = 3,187,207.39
  5. Step 5: Solve for x
    x = 3,187,207.39/2,495.52
  6. Step 6: Final answer
    x = 1,277.17

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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.