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Finding the Third Proportional to 2,163 and 4,590

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Solution

The third proportional to 2,163 and 4,590 is: 9,740.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163 : 4,590 = 4,590 : x
  2. Step 2: Convert to fraction form
    2,163/4,590 = 4,590/x
  3. Step 3: Cross multiply
    2,163x = 4,590 × 4,590
  4. Step 4: Simplify right side
    2,163x = 21,068,100
  5. Step 5: Solve for x
    x = 21,068,100/2,163
  6. Step 6: Final answer
    x = 9,740.22

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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.