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Finding the Third Proportional to 18,904.50 and 29,403

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Solution

The third proportional to 18,904.50 and 29,403 is: 45,731.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,904.50 : 29,403 = 29,403 : x
  2. Step 2: Convert to fraction form
    18,904.50/29,403 = 29,403/x
  3. Step 3: Cross multiply
    18,904.50x = 29,403 × 29,403
  4. Step 4: Simplify right side
    18,904.50x = 864,536,409
  5. Step 5: Solve for x
    x = 864,536,409/18,904.50
  6. Step 6: Final answer
    x = 45,731.78

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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.