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Finding the Fourth Proportional to 49,768.64, 74,644.32 and 16,936.64

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Solution

The fourth proportional to 49,768.64, 74,644.32 and 16,936.64 is: 25,402.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,768.64 : 74,644.32 = 16,936.64 : x
  2. Step 2: Convert to fraction form
    49,768.64/74,644.32 = 16,936.64/x
  3. Step 3: Cross multiply
    49,768.64x = 74,644.32 × 16,936.64
  4. Step 4: Simplify right side
    49,768.64x = 1,264,223,975.88
  5. Step 5: Solve for x
    x = 1,264,223,975.88/49,768.64
  6. Step 6: Final answer
    x = 25,402.02

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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.