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Finding the Third Proportional to 19,635.75 and 31,347

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Solution

The third proportional to 19,635.75 and 31,347 is: 50,043.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,635.75 : 31,347 = 31,347 : x
  2. Step 2: Convert to fraction form
    19,635.75/31,347 = 31,347/x
  3. Step 3: Cross multiply
    19,635.75x = 31,347 × 31,347
  4. Step 4: Simplify right side
    19,635.75x = 982,634,409
  5. Step 5: Solve for x
    x = 982,634,409/19,635.75
  6. Step 6: Final answer
    x = 50,043.13

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.