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Finding the Fourth Proportional to 56,367.78, 84,559.91 and 16,928.01

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Solution

The fourth proportional to 56,367.78, 84,559.91 and 16,928.01 is: 25,394.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,367.78 : 84,559.91 = 16,928.01 : x
  2. Step 2: Convert to fraction form
    56,367.78/84,559.91 = 16,928.01/x
  3. Step 3: Cross multiply
    56,367.78x = 84,559.91 × 16,928.01
  4. Step 4: Simplify right side
    56,367.78x = 1,431,430,917.44
  5. Step 5: Solve for x
    x = 1,431,430,917.44/56,367.78
  6. Step 6: Final answer
    x = 25,394.49

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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.