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Finding the Third Proportional to 3,214.69 and 7,047

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Solution

The third proportional to 3,214.69 and 7,047 is: 15,447.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,214.69 : 7,047 = 7,047 : x
  2. Step 2: Convert to fraction form
    3,214.69/7,047 = 7,047/x
  3. Step 3: Cross multiply
    3,214.69x = 7,047 × 7,047
  4. Step 4: Simplify right side
    3,214.69x = 49,660,209
  5. Step 5: Solve for x
    x = 49,660,209/3,214.69
  6. Step 6: Final answer
    x = 15,447.91

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.