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Finding the Third Proportional to 28,979.16 and 61,785.84

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Solution

The third proportional to 28,979.16 and 61,785.84 is: 131,732.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979.16 : 61,785.84 = 61,785.84 : x
  2. Step 2: Convert to fraction form
    28,979.16/61,785.84 = 61,785.84/x
  3. Step 3: Cross multiply
    28,979.16x = 61,785.84 × 61,785.84
  4. Step 4: Simplify right side
    28,979.16x = 3,817,490,487.90
  5. Step 5: Solve for x
    x = 3,817,490,487.90/28,979.16
  6. Step 6: Final answer
    x = 131,732.29

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.