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Finding the Fourth Proportional to 54,967.50, 82,395.87 and 21,674.66

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Solution

The fourth proportional to 54,967.50, 82,395.87 and 21,674.66 is: 32,490.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,967.50 : 82,395.87 = 21,674.66 : x
  2. Step 2: Convert to fraction form
    54,967.50/82,395.87 = 21,674.66/x
  3. Step 3: Cross multiply
    54,967.50x = 82,395.87 × 21,674.66
  4. Step 4: Simplify right side
    54,967.50x = 1,785,902,467.65
  5. Step 5: Solve for x
    x = 1,785,902,467.65/54,967.50
  6. Step 6: Final answer
    x = 32,490.15

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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.