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Finding the Third Proportional to 1,717.75 and 3,709

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Solution

The third proportional to 1,717.75 and 3,709 is: 8,008.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.75 : 3,709 = 3,709 : x
  2. Step 2: Convert to fraction form
    1,717.75/3,709 = 3,709/x
  3. Step 3: Cross multiply
    1,717.75x = 3,709 × 3,709
  4. Step 4: Simplify right side
    1,717.75x = 13,756,681
  5. Step 5: Solve for x
    x = 13,756,681/1,717.75
  6. Step 6: Final answer
    x = 8,008.55

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.