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Finding the Third Proportional to 28,380.50 and 61,673

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Solution

The third proportional to 28,380.50 and 61,673 is: 134,020.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,380.50 : 61,673 = 61,673 : x
  2. Step 2: Convert to fraction form
    28,380.50/61,673 = 61,673/x
  3. Step 3: Cross multiply
    28,380.50x = 61,673 × 61,673
  4. Step 4: Simplify right side
    28,380.50x = 3,803,558,929
  5. Step 5: Solve for x
    x = 3,803,558,929/28,380.50
  6. Step 6: Final answer
    x = 134,020.15

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.