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Finding the Fourth Proportional to 49,560, 74,340 and 16,728

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Solution

The fourth proportional to 49,560, 74,340 and 16,728 is: 25,092

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,560 : 74,340 = 16,728 : x
  2. Step 2: Convert to fraction form
    49,560/74,340 = 16,728/x
  3. Step 3: Cross multiply
    49,560x = 74,340 × 16,728
  4. Step 4: Simplify right side
    49,560x = 1,243,559,520
  5. Step 5: Solve for x
    x = 1,243,559,520/49,560
  6. Step 6: Final answer
    x = 25,092

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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.