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Finding the Third Proportional to 38,677.50 and 55,201.50

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Solution

The third proportional to 38,677.50 and 55,201.50 is: 78,784.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,677.50 : 55,201.50 = 55,201.50 : x
  2. Step 2: Convert to fraction form
    38,677.50/55,201.50 = 55,201.50/x
  3. Step 3: Cross multiply
    38,677.50x = 55,201.50 × 55,201.50
  4. Step 4: Simplify right side
    38,677.50x = 3,047,205,602.25
  5. Step 5: Solve for x
    x = 3,047,205,602.25/38,677.50
  6. Step 6: Final answer
    x = 78,784.97

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.