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Finding the Fourth Proportional to 56,297.92, 84,418.56 and 18,844.96

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Solution

The fourth proportional to 56,297.92, 84,418.56 and 18,844.96 is: 28,257.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,297.92 : 84,418.56 = 18,844.96 : x
  2. Step 2: Convert to fraction form
    56,297.92/84,418.56 = 18,844.96/x
  3. Step 3: Cross multiply
    56,297.92x = 84,418.56 × 18,844.96
  4. Step 4: Simplify right side
    56,297.92x = 1,590,864,386.46
  5. Step 5: Solve for x
    x = 1,590,864,386.46/56,297.92
  6. Step 6: Final answer
    x = 28,257.96

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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.