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Finding the Fourth Proportional to 2,095.29, 3,143.14 and 708.81

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Solution

The fourth proportional to 2,095.29, 3,143.14 and 708.81 is: 1,063.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,095.29 : 3,143.14 = 708.81 : x
  2. Step 2: Convert to fraction form
    2,095.29/3,143.14 = 708.81/x
  3. Step 3: Cross multiply
    2,095.29x = 3,143.14 × 708.81
  4. Step 4: Simplify right side
    2,095.29x = 2,227,889.06
  5. Step 5: Solve for x
    x = 2,227,889.06/2,095.29
  6. Step 6: Final answer
    x = 1,063.28

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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.