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Finding the Fourth Proportional to 1,613, 2,414.91 and 1,063.51

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Solution

The fourth proportional to 1,613, 2,414.91 and 1,063.51 is: 1,592.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613 : 2,414.91 = 1,063.51 : x
  2. Step 2: Convert to fraction form
    1,613/2,414.91 = 1,063.51/x
  3. Step 3: Cross multiply
    1,613x = 2,414.91 × 1,063.51
  4. Step 4: Simplify right side
    1,613x = 2,568,280.93
  5. Step 5: Solve for x
    x = 2,568,280.93/1,613
  6. Step 6: Final answer
    x = 1,592.24

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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.