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Finding the Third Proportional to 18,885.66 and 29,376.42

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Solution

The third proportional to 18,885.66 and 29,376.42 is: 45,694.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,885.66 : 29,376.42 = 29,376.42 : x
  2. Step 2: Convert to fraction form
    18,885.66/29,376.42 = 29,376.42/x
  3. Step 3: Cross multiply
    18,885.66x = 29,376.42 × 29,376.42
  4. Step 4: Simplify right side
    18,885.66x = 862,974,162.18
  5. Step 5: Solve for x
    x = 862,974,162.18/18,885.66
  6. Step 6: Final answer
    x = 45,694.69

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.