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Finding the Fourth Proportional to 57,393.56, 79,212.51 and 47,818.26

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Solution

The fourth proportional to 57,393.56, 79,212.51 and 47,818.26 is: 65,997.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,393.56 : 79,212.51 = 47,818.26 : x
  2. Step 2: Convert to fraction form
    57,393.56/79,212.51 = 47,818.26/x
  3. Step 3: Cross multiply
    57,393.56x = 79,212.51 × 47,818.26
  4. Step 4: Simplify right side
    57,393.56x = 3,787,804,398.43
  5. Step 5: Solve for x
    x = 3,787,804,398.43/57,393.56
  6. Step 6: Final answer
    x = 65,997.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.