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Finding the Fourth Proportional to 2,683.64, 4,025.00 and 709.29

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Solution

The fourth proportional to 2,683.64, 4,025.00 and 709.29 is: 1,063.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,683.64 : 4,025.00 = 709.29 : x
  2. Step 2: Convert to fraction form
    2,683.64/4,025.00 = 709.29/x
  3. Step 3: Cross multiply
    2,683.64x = 4,025.00 × 709.29
  4. Step 4: Simplify right side
    2,683.64x = 2,854,888.70
  5. Step 5: Solve for x
    x = 2,854,888.70/2,683.64
  6. Step 6: Final answer
    x = 1,063.81

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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.