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Finding the Third Proportional to 48,043.50 and 72,219

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Solution

The third proportional to 48,043.50 and 72,219 is: 108,559.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,043.50 : 72,219 = 72,219 : x
  2. Step 2: Convert to fraction form
    48,043.50/72,219 = 72,219/x
  3. Step 3: Cross multiply
    48,043.50x = 72,219 × 72,219
  4. Step 4: Simplify right side
    48,043.50x = 5,215,583,961
  5. Step 5: Solve for x
    x = 5,215,583,961/48,043.50
  6. Step 6: Final answer
    x = 108,559.62

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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.