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Finding the Third Proportional to 2,871.75 and 4,555.13

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Solution

The third proportional to 2,871.75 and 4,555.13 is: 7,225.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.75 : 4,555.13 = 4,555.13 : x
  2. Step 2: Convert to fraction form
    2,871.75/4,555.13 = 4,555.13/x
  3. Step 3: Cross multiply
    2,871.75x = 4,555.13 × 4,555.13
  4. Step 4: Simplify right side
    2,871.75x = 20,749,163.77
  5. Step 5: Solve for x
    x = 20,749,163.77/2,871.75
  6. Step 6: Final answer
    x = 7,225.27

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.