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Finding the Fourth Proportional to 54,699.57, 82,016.51 and 21,379.94

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Solution

The fourth proportional to 54,699.57, 82,016.51 and 21,379.94 is: 32,057.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,699.57 : 82,016.51 = 21,379.94 : x
  2. Step 2: Convert to fraction form
    54,699.57/82,016.51 = 21,379.94/x
  3. Step 3: Cross multiply
    54,699.57x = 82,016.51 × 21,379.94
  4. Step 4: Simplify right side
    54,699.57x = 1,753,507,545.83
  5. Step 5: Solve for x
    x = 1,753,507,545.83/54,699.57
  6. Step 6: Final answer
    x = 32,057.06

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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.