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Finding the Third Proportional to 42,618.94 and 63,928.41

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Solution

The third proportional to 42,618.94 and 63,928.41 is: 95,892.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,618.94 : 63,928.41 = 63,928.41 : x
  2. Step 2: Convert to fraction form
    42,618.94/63,928.41 = 63,928.41/x
  3. Step 3: Cross multiply
    42,618.94x = 63,928.41 × 63,928.41
  4. Step 4: Simplify right side
    42,618.94x = 4,086,841,125.67
  5. Step 5: Solve for x
    x = 4,086,841,125.67/42,618.94
  6. Step 6: Final answer
    x = 95,892.61

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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.