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Finding the Third Proportional to 18,916.88 and 27,826.88

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Solution

The third proportional to 18,916.88 and 27,826.88 is: 40,933.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,916.88 : 27,826.88 = 27,826.88 : x
  2. Step 2: Convert to fraction form
    18,916.88/27,826.88 = 27,826.88/x
  3. Step 3: Cross multiply
    18,916.88x = 27,826.88 × 27,826.88
  4. Step 4: Simplify right side
    18,916.88x = 774,334,972.27
  5. Step 5: Solve for x
    x = 774,334,972.27/18,916.88
  6. Step 6: Final answer
    x = 40,933.56

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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.