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Finding the Third Proportional to 38,695.50 and 84,774

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Solution

The third proportional to 38,695.50 and 84,774 is: 185,722.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,695.50 : 84,774 = 84,774 : x
  2. Step 2: Convert to fraction form
    38,695.50/84,774 = 84,774/x
  3. Step 3: Cross multiply
    38,695.50x = 84,774 × 84,774
  4. Step 4: Simplify right side
    38,695.50x = 7,186,631,076
  5. Step 5: Solve for x
    x = 7,186,631,076/38,695.50
  6. Step 6: Final answer
    x = 185,722.66

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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.