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Finding the Third Proportional to 15,432 and 33,309.75

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Solution

The third proportional to 15,432 and 33,309.75 is: 71,898.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,432 : 33,309.75 = 33,309.75 : x
  2. Step 2: Convert to fraction form
    15,432/33,309.75 = 33,309.75/x
  3. Step 3: Cross multiply
    15,432x = 33,309.75 × 33,309.75
  4. Step 4: Simplify right side
    15,432x = 1,109,539,445.06
  5. Step 5: Solve for x
    x = 1,109,539,445.06/15,432
  6. Step 6: Final answer
    x = 71,898.62

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.