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Finding the Third Proportional to 91,720 and 91,720

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Solution

The third proportional to 91,720 and 91,720 is: 91,720

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,720 : 91,720 = 91,720 : x
  2. Step 2: Convert to fraction form
    91,720/91,720 = 91,720/x
  3. Step 3: Cross multiply
    91,720x = 91,720 × 91,720
  4. Step 4: Simplify right side
    91,720x = 8,412,558,400
  5. Step 5: Solve for x
    x = 8,412,558,400/91,720
  6. Step 6: Final answer
    x = 91,720

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Why These Related Problems?

These problems maintain the same ratio (1) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.