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Finding the Third Proportional to 3,574 and 7,862

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Solution

The third proportional to 3,574 and 7,862 is: 17,294.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,574 : 7,862 = 7,862 : x
  2. Step 2: Convert to fraction form
    3,574/7,862 = 7,862/x
  3. Step 3: Cross multiply
    3,574x = 7,862 × 7,862
  4. Step 4: Simplify right side
    3,574x = 61,811,044
  5. Step 5: Solve for x
    x = 61,811,044/3,574
  6. Step 6: Final answer
    x = 17,294.64

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.