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Finding the Fourth Proportional to 4,810, 7,215 and 1,162

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Solution

The fourth proportional to 4,810, 7,215 and 1,162 is: 1,743

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,810 : 7,215 = 1,162 : x
  2. Step 2: Convert to fraction form
    4,810/7,215 = 1,162/x
  3. Step 3: Cross multiply
    4,810x = 7,215 × 1,162
  4. Step 4: Simplify right side
    4,810x = 8,383,830
  5. Step 5: Solve for x
    x = 8,383,830/4,810
  6. Step 6: Final answer
    x = 1,743

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.