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Finding the Fourth Proportional to 41,760, 62,640 and 14,058

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Solution

The fourth proportional to 41,760, 62,640 and 14,058 is: 21,087

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,760 : 62,640 = 14,058 : x
  2. Step 2: Convert to fraction form
    41,760/62,640 = 14,058/x
  3. Step 3: Cross multiply
    41,760x = 62,640 × 14,058
  4. Step 4: Simplify right side
    41,760x = 880,593,120
  5. Step 5: Solve for x
    x = 880,593,120/41,760
  6. Step 6: Final answer
    x = 21,087

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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.