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Finding the Third Proportional to 10,129.50 and 15,153

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Solution

The third proportional to 10,129.50 and 15,153 is: 22,667.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.50 : 15,153 = 15,153 : x
  2. Step 2: Convert to fraction form
    10,129.50/15,153 = 15,153/x
  3. Step 3: Cross multiply
    10,129.50x = 15,153 × 15,153
  4. Step 4: Simplify right side
    10,129.50x = 229,613,409
  5. Step 5: Solve for x
    x = 229,613,409/10,129.50
  6. Step 6: Final answer
    x = 22,667.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.