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Finding the Third Proportional to 43,847 and 64,129

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Solution

The third proportional to 43,847 and 64,129 is: 93,792.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,847 : 64,129 = 64,129 : x
  2. Step 2: Convert to fraction form
    43,847/64,129 = 64,129/x
  3. Step 3: Cross multiply
    43,847x = 64,129 × 64,129
  4. Step 4: Simplify right side
    43,847x = 4,112,528,641
  5. Step 5: Solve for x
    x = 4,112,528,641/43,847
  6. Step 6: Final answer
    x = 93,792.70

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.