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Finding the Fourth Proportional to 56,379.92, 84,560.72 and 16,930.08

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Solution

The fourth proportional to 56,379.92, 84,560.72 and 16,930.08 is: 25,392.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,379.92 : 84,560.72 = 16,930.08 : x
  2. Step 2: Convert to fraction form
    56,379.92/84,560.72 = 16,930.08/x
  3. Step 3: Cross multiply
    56,379.92x = 84,560.72 × 16,930.08
  4. Step 4: Simplify right side
    56,379.92x = 1,431,619,669.81
  5. Step 5: Solve for x
    x = 1,431,619,669.81/56,379.92
  6. Step 6: Final answer
    x = 25,392.37

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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.