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Finding the Third Proportional to 41,432 and 64,272

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Solution

The third proportional to 41,432 and 64,272 is: 99,702.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,432 : 64,272 = 64,272 : x
  2. Step 2: Convert to fraction form
    41,432/64,272 = 64,272/x
  3. Step 3: Cross multiply
    41,432x = 64,272 × 64,272
  4. Step 4: Simplify right side
    41,432x = 4,130,889,984
  5. Step 5: Solve for x
    x = 4,130,889,984/41,432
  6. Step 6: Final answer
    x = 99,702.89

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.