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Finding the Fourth Proportional to 2,495.80, 3,743.70 and 936.55

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Solution

The fourth proportional to 2,495.80, 3,743.70 and 936.55 is: 1,404.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,495.80 : 3,743.70 = 936.55 : x
  2. Step 2: Convert to fraction form
    2,495.80/3,743.70 = 936.55/x
  3. Step 3: Cross multiply
    2,495.80x = 3,743.70 × 936.55
  4. Step 4: Simplify right side
    2,495.80x = 3,506,162.24
  5. Step 5: Solve for x
    x = 3,506,162.24/2,495.80
  6. Step 6: Final answer
    x = 1,404.83

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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.