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Finding the Fourth Proportional to 49,964.88, 74,956.32 and 16,681.68

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Solution

The fourth proportional to 49,964.88, 74,956.32 and 16,681.68 is: 25,025.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,964.88 : 74,956.32 = 16,681.68 : x
  2. Step 2: Convert to fraction form
    49,964.88/74,956.32 = 16,681.68/x
  3. Step 3: Cross multiply
    49,964.88x = 74,956.32 × 16,681.68
  4. Step 4: Simplify right side
    49,964.88x = 1,250,397,344.22
  5. Step 5: Solve for x
    x = 1,250,397,344.22/49,964.88
  6. Step 6: Final answer
    x = 25,025.52

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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.