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Finding the Third Proportional to 4,149 and 8,784

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Solution

The third proportional to 4,149 and 8,784 is: 18,596.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,149 : 8,784 = 8,784 : x
  2. Step 2: Convert to fraction form
    4,149/8,784 = 8,784/x
  3. Step 3: Cross multiply
    4,149x = 8,784 × 8,784
  4. Step 4: Simplify right side
    4,149x = 77,158,656
  5. Step 5: Solve for x
    x = 77,158,656/4,149
  6. Step 6: Final answer
    x = 18,596.93

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.