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Finding the Third Proportional to 28,372.78 and 39,345.75

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Solution

The third proportional to 28,372.78 and 39,345.75 is: 54,562.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,372.78 : 39,345.75 = 39,345.75 : x
  2. Step 2: Convert to fraction form
    28,372.78/39,345.75 = 39,345.75/x
  3. Step 3: Cross multiply
    28,372.78x = 39,345.75 × 39,345.75
  4. Step 4: Simplify right side
    28,372.78x = 1,548,088,043.06
  5. Step 5: Solve for x
    x = 1,548,088,043.06/28,372.78
  6. Step 6: Final answer
    x = 54,562.44

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.