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Finding the Fourth Proportional to 64,794.03, 89,385.19 and 37,919.89

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Solution

The fourth proportional to 64,794.03, 89,385.19 and 37,919.89 is: 52,311.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,794.03 : 89,385.19 = 37,919.89 : x
  2. Step 2: Convert to fraction form
    64,794.03/89,385.19 = 37,919.89/x
  3. Step 3: Cross multiply
    64,794.03x = 89,385.19 × 37,919.89
  4. Step 4: Simplify right side
    64,794.03x = 3,389,476,572.43
  5. Step 5: Solve for x
    x = 3,389,476,572.43/64,794.03
  6. Step 6: Final answer
    x = 52,311.56

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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.