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Finding the Third Proportional to 4,746 and 10,209

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Solution

The third proportional to 4,746 and 10,209 is: 21,960.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,746 : 10,209 = 10,209 : x
  2. Step 2: Convert to fraction form
    4,746/10,209 = 10,209/x
  3. Step 3: Cross multiply
    4,746x = 10,209 × 10,209
  4. Step 4: Simplify right side
    4,746x = 104,223,681
  5. Step 5: Solve for x
    x = 104,223,681/4,746
  6. Step 6: Final answer
    x = 21,960.32

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.