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Finding the Third Proportional to 34,431 and 75,072

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Solution

The third proportional to 34,431 and 75,072 is: 163,684.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,431 : 75,072 = 75,072 : x
  2. Step 2: Convert to fraction form
    34,431/75,072 = 75,072/x
  3. Step 3: Cross multiply
    34,431x = 75,072 × 75,072
  4. Step 4: Simplify right side
    34,431x = 5,635,805,184
  5. Step 5: Solve for x
    x = 5,635,805,184/34,431
  6. Step 6: Final answer
    x = 163,684.04

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.