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Finding the Fourth Proportional to 57,586.58, 79,472.18 and 33,720.94

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Solution

The fourth proportional to 57,586.58, 79,472.18 and 33,720.94 is: 46,536.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,586.58 : 79,472.18 = 33,720.94 : x
  2. Step 2: Convert to fraction form
    57,586.58/79,472.18 = 33,720.94/x
  3. Step 3: Cross multiply
    57,586.58x = 79,472.18 × 33,720.94
  4. Step 4: Simplify right side
    57,586.58x = 2,679,876,499.07
  5. Step 5: Solve for x
    x = 2,679,876,499.07/57,586.58
  6. Step 6: Final answer
    x = 46,536.48

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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.