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Finding the Fourth Proportional to 56,351.91, 84,536.10 and 16,912.14

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Solution

The fourth proportional to 56,351.91, 84,536.10 and 16,912.14 is: 25,370.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,351.91 : 84,536.10 = 16,912.14 : x
  2. Step 2: Convert to fraction form
    56,351.91/84,536.10 = 16,912.14/x
  3. Step 3: Cross multiply
    56,351.91x = 84,536.10 × 16,912.14
  4. Step 4: Simplify right side
    56,351.91x = 1,429,685,935.57
  5. Step 5: Solve for x
    x = 1,429,685,935.57/56,351.91
  6. Step 6: Final answer
    x = 25,370.68

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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.