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Finding the Third Proportional to 45,238.75 and 66,542.38

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Solution

The third proportional to 45,238.75 and 66,542.38 is: 97,878.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,238.75 : 66,542.38 = 66,542.38 : x
  2. Step 2: Convert to fraction form
    45,238.75/66,542.38 = 66,542.38/x
  3. Step 3: Cross multiply
    45,238.75x = 66,542.38 × 66,542.38
  4. Step 4: Simplify right side
    45,238.75x = 4,427,887,670.64
  5. Step 5: Solve for x
    x = 4,427,887,670.64/45,238.75
  6. Step 6: Final answer
    x = 97,878.21

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.