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Finding the Fourth Proportional to 49,895.56, 74,843.58 and 12,959.56

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Solution

The fourth proportional to 49,895.56, 74,843.58 and 12,959.56 is: 19,439.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,895.56 : 74,843.58 = 12,959.56 : x
  2. Step 2: Convert to fraction form
    49,895.56/74,843.58 = 12,959.56/x
  3. Step 3: Cross multiply
    49,895.56x = 74,843.58 × 12,959.56
  4. Step 4: Simplify right side
    49,895.56x = 969,939,865.62
  5. Step 5: Solve for x
    x = 969,939,865.62/49,895.56
  6. Step 6: Final answer
    x = 19,439.40

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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.