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Finding the Fourth Proportional to 51,199.64, 76,787.93 and 18,367.64

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Solution

The fourth proportional to 51,199.64, 76,787.93 and 18,367.64 is: 27,547.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,199.64 : 76,787.93 = 18,367.64 : x
  2. Step 2: Convert to fraction form
    51,199.64/76,787.93 = 18,367.64/x
  3. Step 3: Cross multiply
    51,199.64x = 76,787.93 × 18,367.64
  4. Step 4: Simplify right side
    51,199.64x = 1,410,412,716.56
  5. Step 5: Solve for x
    x = 1,410,412,716.56/51,199.64
  6. Step 6: Final answer
    x = 27,547.32

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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.