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Finding the Third Proportional to 38,880.75 and 85,294.31

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Solution

The third proportional to 38,880.75 and 85,294.31 is: 187,113.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,880.75 : 85,294.31 = 85,294.31 : x
  2. Step 2: Convert to fraction form
    38,880.75/85,294.31 = 85,294.31/x
  3. Step 3: Cross multiply
    38,880.75x = 85,294.31 × 85,294.31
  4. Step 4: Simplify right side
    38,880.75x = 7,275,119,744.85
  5. Step 5: Solve for x
    x = 7,275,119,744.85/38,880.75
  6. Step 6: Final answer
    x = 187,113.67

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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.