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Finding the Third Proportional to 5,890 and 8,772

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Solution

The third proportional to 5,890 and 8,772 is: 13,064.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,890 : 8,772 = 8,772 : x
  2. Step 2: Convert to fraction form
    5,890/8,772 = 8,772/x
  3. Step 3: Cross multiply
    5,890x = 8,772 × 8,772
  4. Step 4: Simplify right side
    5,890x = 76,947,984
  5. Step 5: Solve for x
    x = 76,947,984/5,890
  6. Step 6: Final answer
    x = 13,064.17

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.