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Finding the Fourth Proportional to 57,717.36, 79,472.28 and 49,200.36

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Solution

The fourth proportional to 57,717.36, 79,472.28 and 49,200.36 is: 67,745.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,717.36 : 79,472.28 = 49,200.36 : x
  2. Step 2: Convert to fraction form
    57,717.36/79,472.28 = 49,200.36/x
  3. Step 3: Cross multiply
    57,717.36x = 79,472.28 × 49,200.36
  4. Step 4: Simplify right side
    57,717.36x = 3,910,064,786.02
  5. Step 5: Solve for x
    x = 3,910,064,786.02/57,717.36
  6. Step 6: Final answer
    x = 67,745.04

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1.5x scale

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.