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Finding the Third Proportional to 19,917.38 and 43,347

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Solution

The third proportional to 19,917.38 and 43,347 is: 94,337.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,917.38 : 43,347 = 43,347 : x
  2. Step 2: Convert to fraction form
    19,917.38/43,347 = 43,347/x
  3. Step 3: Cross multiply
    19,917.38x = 43,347 × 43,347
  4. Step 4: Simplify right side
    19,917.38x = 1,878,962,409
  5. Step 5: Solve for x
    x = 1,878,962,409/19,917.38
  6. Step 6: Final answer
    x = 94,337.85

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.