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Finding the Third Proportional to 5,385 and 8,058

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Solution

The third proportional to 5,385 and 8,058 is: 12,057.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385 : 8,058 = 8,058 : x
  2. Step 2: Convert to fraction form
    5,385/8,058 = 8,058/x
  3. Step 3: Cross multiply
    5,385x = 8,058 × 8,058
  4. Step 4: Simplify right side
    5,385x = 64,931,364
  5. Step 5: Solve for x
    x = 64,931,364/5,385
  6. Step 6: Final answer
    x = 12,057.82

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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.