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Finding the Third Proportional to 54,051.75 and 85,887

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Solution

The third proportional to 54,051.75 and 85,887 is: 136,472.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,051.75 : 85,887 = 85,887 : x
  2. Step 2: Convert to fraction form
    54,051.75/85,887 = 85,887/x
  3. Step 3: Cross multiply
    54,051.75x = 85,887 × 85,887
  4. Step 4: Simplify right side
    54,051.75x = 7,376,576,769
  5. Step 5: Solve for x
    x = 7,376,576,769/54,051.75
  6. Step 6: Final answer
    x = 136,472.49

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.