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Finding the Fourth Proportional to 49,905.72, 68,866.97 and 27,240.21

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Solution

The fourth proportional to 49,905.72, 68,866.97 and 27,240.21 is: 37,589.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,905.72 : 68,866.97 = 27,240.21 : x
  2. Step 2: Convert to fraction form
    49,905.72/68,866.97 = 27,240.21/x
  3. Step 3: Cross multiply
    49,905.72x = 68,866.97 × 27,240.21
  4. Step 4: Simplify right side
    49,905.72x = 1,875,950,588.66
  5. Step 5: Solve for x
    x = 1,875,950,588.66/49,905.72
  6. Step 6: Final answer
    x = 37,589.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.