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Finding the Third Proportional to 4,770 and 10,518

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Solution

The third proportional to 4,770 and 10,518 is: 23,192.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,770 : 10,518 = 10,518 : x
  2. Step 2: Convert to fraction form
    4,770/10,518 = 10,518/x
  3. Step 3: Cross multiply
    4,770x = 10,518 × 10,518
  4. Step 4: Simplify right side
    4,770x = 110,628,324
  5. Step 5: Solve for x
    x = 110,628,324/4,770
  6. Step 6: Final answer
    x = 23,192.52

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.