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Finding the Fourth Proportional to 56,226.69, 84,338.69 and 18,275.91

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Solution

The fourth proportional to 56,226.69, 84,338.69 and 18,275.91 is: 27,413.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,226.69 : 84,338.69 = 18,275.91 : x
  2. Step 2: Convert to fraction form
    56,226.69/84,338.69 = 18,275.91/x
  3. Step 3: Cross multiply
    56,226.69x = 84,338.69 × 18,275.91
  4. Step 4: Simplify right side
    56,226.69x = 1,541,366,092.71
  5. Step 5: Solve for x
    x = 1,541,366,092.71/56,226.69
  6. Step 6: Final answer
    x = 27,413.43

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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.