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Finding the Third Proportional to 2,709 and 6,712.50

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Solution

The third proportional to 2,709 and 6,712.50 is: 16,632.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,709 : 6,712.50 = 6,712.50 : x
  2. Step 2: Convert to fraction form
    2,709/6,712.50 = 6,712.50/x
  3. Step 3: Cross multiply
    2,709x = 6,712.50 × 6,712.50
  4. Step 4: Simplify right side
    2,709x = 45,057,656.25
  5. Step 5: Solve for x
    x = 45,057,656.25/2,709
  6. Step 6: Final answer
    x = 16,632.58

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Why These Related Problems?

These problems maintain the same ratio (2.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.