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Finding the Fourth Proportional to 57,723.45, 79,676.51 and 33,859.77

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Solution

The fourth proportional to 57,723.45, 79,676.51 and 33,859.77 is: 46,737.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,723.45 : 79,676.51 = 33,859.77 : x
  2. Step 2: Convert to fraction form
    57,723.45/79,676.51 = 33,859.77/x
  3. Step 3: Cross multiply
    57,723.45x = 79,676.51 × 33,859.77
  4. Step 4: Simplify right side
    57,723.45x = 2,697,828,133.70
  5. Step 5: Solve for x
    x = 2,697,828,133.70/57,723.45
  6. Step 6: Final answer
    x = 46,737.13

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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.