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Finding the Third Proportional to 16,887 and 28,975.50

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Solution

The third proportional to 16,887 and 28,975.50 is: 49,717.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,887 : 28,975.50 = 28,975.50 : x
  2. Step 2: Convert to fraction form
    16,887/28,975.50 = 28,975.50/x
  3. Step 3: Cross multiply
    16,887x = 28,975.50 × 28,975.50
  4. Step 4: Simplify right side
    16,887x = 839,579,600.25
  5. Step 5: Solve for x
    x = 839,579,600.25/16,887
  6. Step 6: Final answer
    x = 49,717.51

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Why These Related Problems?

These problems maintain the same ratio (1.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.