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Finding the Third Proportional to 4,770 and 12,411

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Solution

The third proportional to 4,770 and 12,411 is: 32,292.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,770 : 12,411 = 12,411 : x
  2. Step 2: Convert to fraction form
    4,770/12,411 = 12,411/x
  3. Step 3: Cross multiply
    4,770x = 12,411 × 12,411
  4. Step 4: Simplify right side
    4,770x = 154,032,921
  5. Step 5: Solve for x
    x = 154,032,921/4,770
  6. Step 6: Final answer
    x = 32,292.02

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Why These Related Problems?

These problems maintain the same ratio (2.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.