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Finding the Third Proportional to 66,726 and 103,914

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Solution

The third proportional to 66,726 and 103,914 is: 161,827.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,726 : 103,914 = 103,914 : x
  2. Step 2: Convert to fraction form
    66,726/103,914 = 103,914/x
  3. Step 3: Cross multiply
    66,726x = 103,914 × 103,914
  4. Step 4: Simplify right side
    66,726x = 10,798,119,396
  5. Step 5: Solve for x
    x = 10,798,119,396/66,726
  6. Step 6: Final answer
    x = 161,827.76

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.