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Finding the Fourth Proportional to 2,613.36, 3,910.36 and 1,574.04

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Solution

The fourth proportional to 2,613.36, 3,910.36 and 1,574.04 is: 2,355.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,613.36 : 3,910.36 = 1,574.04 : x
  2. Step 2: Convert to fraction form
    2,613.36/3,910.36 = 1,574.04/x
  3. Step 3: Cross multiply
    2,613.36x = 3,910.36 × 1,574.04
  4. Step 4: Simplify right side
    2,613.36x = 6,155,063.05
  5. Step 5: Solve for x
    x = 6,155,063.05/2,613.36
  6. Step 6: Final answer
    x = 2,355.23

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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.