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Finding the Third Proportional to 3,548.81 and 6,918.75

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Solution

The third proportional to 3,548.81 and 6,918.75 is: 13,488.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,548.81 : 6,918.75 = 6,918.75 : x
  2. Step 2: Convert to fraction form
    3,548.81/6,918.75 = 6,918.75/x
  3. Step 3: Cross multiply
    3,548.81x = 6,918.75 × 6,918.75
  4. Step 4: Simplify right side
    3,548.81x = 47,869,101.56
  5. Step 5: Solve for x
    x = 47,869,101.56/3,548.81
  6. Step 6: Final answer
    x = 13,488.77

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.