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Finding the Third Proportional to 7,198.50 and 15,732

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Solution

The third proportional to 7,198.50 and 15,732 is: 34,381.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,198.50 : 15,732 = 15,732 : x
  2. Step 2: Convert to fraction form
    7,198.50/15,732 = 15,732/x
  3. Step 3: Cross multiply
    7,198.50x = 15,732 × 15,732
  4. Step 4: Simplify right side
    7,198.50x = 247,495,824
  5. Step 5: Solve for x
    x = 247,495,824/7,198.50
  6. Step 6: Final answer
    x = 34,381.58

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.