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Finding the Third Proportional to 4,370 and 5,610

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Solution

The third proportional to 4,370 and 5,610 is: 7,201.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,370 : 5,610 = 5,610 : x
  2. Step 2: Convert to fraction form
    4,370/5,610 = 5,610/x
  3. Step 3: Cross multiply
    4,370x = 5,610 × 5,610
  4. Step 4: Simplify right side
    4,370x = 31,472,100
  5. Step 5: Solve for x
    x = 31,472,100/4,370
  6. Step 6: Final answer
    x = 7,201.85

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.