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Finding the Third Proportional to 11,347.50 and 15,886.50

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Solution

The third proportional to 11,347.50 and 15,886.50 is: 22,241.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,347.50 : 15,886.50 = 15,886.50 : x
  2. Step 2: Convert to fraction form
    11,347.50/15,886.50 = 15,886.50/x
  3. Step 3: Cross multiply
    11,347.50x = 15,886.50 × 15,886.50
  4. Step 4: Simplify right side
    11,347.50x = 252,380,882.25
  5. Step 5: Solve for x
    x = 252,380,882.25/11,347.50
  6. Step 6: Final answer
    x = 22,241.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.