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Finding the Fourth Proportional to 49,312.64, 73,979.90 and 14,249.64

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Solution

The fourth proportional to 49,312.64, 73,979.90 and 14,249.64 is: 21,377.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,312.64 : 73,979.90 = 14,249.64 : x
  2. Step 2: Convert to fraction form
    49,312.64/73,979.90 = 14,249.64/x
  3. Step 3: Cross multiply
    49,312.64x = 73,979.90 × 14,249.64
  4. Step 4: Simplify right side
    49,312.64x = 1,054,186,942.24
  5. Step 5: Solve for x
    x = 1,054,186,942.24/49,312.64
  6. Step 6: Final answer
    x = 21,377.62

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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.