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Finding the Third Proportional to 4,584 and 9,879

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Solution

The third proportional to 4,584 and 9,879 is: 21,290.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,584 : 9,879 = 9,879 : x
  2. Step 2: Convert to fraction form
    4,584/9,879 = 9,879/x
  3. Step 3: Cross multiply
    4,584x = 9,879 × 9,879
  4. Step 4: Simplify right side
    4,584x = 97,594,641
  5. Step 5: Solve for x
    x = 97,594,641/4,584
  6. Step 6: Final answer
    x = 21,290.28

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.