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Finding the Third Proportional to 28,740 and 44,390

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Solution

The third proportional to 28,740 and 44,390 is: 68,562.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,740 : 44,390 = 44,390 : x
  2. Step 2: Convert to fraction form
    28,740/44,390 = 44,390/x
  3. Step 3: Cross multiply
    28,740x = 44,390 × 44,390
  4. Step 4: Simplify right side
    28,740x = 1,970,472,100
  5. Step 5: Solve for x
    x = 1,970,472,100/28,740
  6. Step 6: Final answer
    x = 68,562.01

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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.