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Finding the Fourth Proportional to 57,151.58, 85,717.64 and 15,588.86

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Solution

The fourth proportional to 57,151.58, 85,717.64 and 15,588.86 is: 23,380.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,151.58 : 85,717.64 = 15,588.86 : x
  2. Step 2: Convert to fraction form
    57,151.58/85,717.64 = 15,588.86/x
  3. Step 3: Cross multiply
    57,151.58x = 85,717.64 × 15,588.86
  4. Step 4: Simplify right side
    57,151.58x = 1,336,239,899.87
  5. Step 5: Solve for x
    x = 1,336,239,899.87/57,151.58
  6. Step 6: Final answer
    x = 23,380.63

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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.