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Finding the Fourth Proportional to 57,690.36, 79,567.92 and 36,461.88

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Solution

The fourth proportional to 57,690.36, 79,567.92 and 36,461.88 is: 50,289.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,690.36 : 79,567.92 = 36,461.88 : x
  2. Step 2: Convert to fraction form
    57,690.36/79,567.92 = 36,461.88/x
  3. Step 3: Cross multiply
    57,690.36x = 79,567.92 × 36,461.88
  4. Step 4: Simplify right side
    57,690.36x = 2,901,195,950.89
  5. Step 5: Solve for x
    x = 2,901,195,950.89/57,690.36
  6. Step 6: Final answer
    x = 50,289.09

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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.