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Finding the Third Proportional to 28,720 and 44,133

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Solution

The third proportional to 28,720 and 44,133 is: 67,817.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,720 : 44,133 = 44,133 : x
  2. Step 2: Convert to fraction form
    28,720/44,133 = 44,133/x
  3. Step 3: Cross multiply
    28,720x = 44,133 × 44,133
  4. Step 4: Simplify right side
    28,720x = 1,947,721,689
  5. Step 5: Solve for x
    x = 1,947,721,689/28,720
  6. Step 6: Final answer
    x = 67,817.61

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.