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Finding the Third Proportional to 43,670 and 65,722

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Solution

The third proportional to 43,670 and 65,722 is: 98,909.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,670 : 65,722 = 65,722 : x
  2. Step 2: Convert to fraction form
    43,670/65,722 = 65,722/x
  3. Step 3: Cross multiply
    43,670x = 65,722 × 65,722
  4. Step 4: Simplify right side
    43,670x = 4,319,381,284
  5. Step 5: Solve for x
    x = 4,319,381,284/43,670
  6. Step 6: Final answer
    x = 98,909.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.