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Finding the Third Proportional to 66,750 and 93,321

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Solution

The third proportional to 66,750 and 93,321 is: 130,469.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,750 : 93,321 = 93,321 : x
  2. Step 2: Convert to fraction form
    66,750/93,321 = 93,321/x
  3. Step 3: Cross multiply
    66,750x = 93,321 × 93,321
  4. Step 4: Simplify right side
    66,750x = 8,708,809,041
  5. Step 5: Solve for x
    x = 8,708,809,041/66,750
  6. Step 6: Final answer
    x = 130,469.05

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.