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Finding the Third Proportional to 66,797 and 93,390

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Solution

The third proportional to 66,797 and 93,390 is: 130,570.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,797 : 93,390 = 93,390 : x
  2. Step 2: Convert to fraction form
    66,797/93,390 = 93,390/x
  3. Step 3: Cross multiply
    66,797x = 93,390 × 93,390
  4. Step 4: Simplify right side
    66,797x = 8,721,692,100
  5. Step 5: Solve for x
    x = 8,721,692,100/66,797
  6. Step 6: Final answer
    x = 130,570.12

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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.