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Finding the Third Proportional to 949 and 1,709

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Solution

The third proportional to 949 and 1,709 is: 3,077.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    949 : 1,709 = 1,709 : x
  2. Step 2: Convert to fraction form
    949/1,709 = 1,709/x
  3. Step 3: Cross multiply
    949x = 1,709 × 1,709
  4. Step 4: Simplify right side
    949x = 2,920,681
  5. Step 5: Solve for x
    x = 2,920,681/949
  6. Step 6: Final answer
    x = 3,077.64

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Why These Related Problems?

These problems maintain the same ratio (1.80) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.