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Finding the Fourth Proportional to 57,867.70, 79,865.94 and 36,648.94

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Solution

The fourth proportional to 57,867.70, 79,865.94 and 36,648.94 is: 50,580.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,867.70 : 79,865.94 = 36,648.94 : x
  2. Step 2: Convert to fraction form
    57,867.70/79,865.94 = 36,648.94/x
  3. Step 3: Cross multiply
    57,867.70x = 79,865.94 × 36,648.94
  4. Step 4: Simplify right side
    57,867.70x = 2,927,002,043.10
  5. Step 5: Solve for x
    x = 2,927,002,043.10/57,867.70
  6. Step 6: Final answer
    x = 50,580.93

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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.