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Finding the Third Proportional to 28,839.50 and 63,357

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Solution

The third proportional to 28,839.50 and 63,357 is: 139,187.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,839.50 : 63,357 = 63,357 : x
  2. Step 2: Convert to fraction form
    28,839.50/63,357 = 63,357/x
  3. Step 3: Cross multiply
    28,839.50x = 63,357 × 63,357
  4. Step 4: Simplify right side
    28,839.50x = 4,014,109,449
  5. Step 5: Solve for x
    x = 4,014,109,449/28,839.50
  6. Step 6: Final answer
    x = 139,187.90

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.