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Finding the Fourth Proportional to 49,698.78, 74,548.78 and 27,555.42

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Solution

The fourth proportional to 49,698.78, 74,548.78 and 27,555.42 is: 41,333.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,698.78 : 74,548.78 = 27,555.42 : x
  2. Step 2: Convert to fraction form
    49,698.78/74,548.78 = 27,555.42/x
  3. Step 3: Cross multiply
    49,698.78x = 74,548.78 × 27,555.42
  4. Step 4: Simplify right side
    49,698.78x = 2,054,222,943.39
  5. Step 5: Solve for x
    x = 2,054,222,943.39/49,698.78
  6. Step 6: Final answer
    x = 41,333.47

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1.5x scale

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.