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Finding the Fourth Proportional to 49,644, 74,466 and 12,708

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Solution

The fourth proportional to 49,644, 74,466 and 12,708 is: 19,062

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,644 : 74,466 = 12,708 : x
  2. Step 2: Convert to fraction form
    49,644/74,466 = 12,708/x
  3. Step 3: Cross multiply
    49,644x = 74,466 × 12,708
  4. Step 4: Simplify right side
    49,644x = 946,313,928
  5. Step 5: Solve for x
    x = 946,313,928/49,644
  6. Step 6: Final answer
    x = 19,062

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.