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Finding the Fourth Proportional to 57,402.64, 79,217.40 and 34,745.80

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Solution

The fourth proportional to 57,402.64, 79,217.40 and 34,745.80 is: 47,950.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,402.64 : 79,217.40 = 34,745.80 : x
  2. Step 2: Convert to fraction form
    57,402.64/79,217.40 = 34,745.80/x
  3. Step 3: Cross multiply
    57,402.64x = 79,217.40 × 34,745.80
  4. Step 4: Simplify right side
    57,402.64x = 2,752,471,936.92
  5. Step 5: Solve for x
    x = 2,752,471,936.92/57,402.64
  6. Step 6: Final answer
    x = 47,950.27

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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.