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Finding the Third Proportional to 18,741.38 and 28,058.91

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Solution

The third proportional to 18,741.38 and 28,058.91 is: 42,008.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,741.38 : 28,058.91 = 28,058.91 : x
  2. Step 2: Convert to fraction form
    18,741.38/28,058.91 = 28,058.91/x
  3. Step 3: Cross multiply
    18,741.38x = 28,058.91 × 28,058.91
  4. Step 4: Simplify right side
    18,741.38x = 787,302,219.95
  5. Step 5: Solve for x
    x = 787,302,219.95/18,741.38
  6. Step 6: Final answer
    x = 42,008.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.