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Finding the Fourth Proportional to 64,704.72, 89,292.33 and 36,410.43

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Solution

The fourth proportional to 64,704.72, 89,292.33 and 36,410.43 is: 50,246.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,704.72 : 89,292.33 = 36,410.43 : x
  2. Step 2: Convert to fraction form
    64,704.72/89,292.33 = 36,410.43/x
  3. Step 3: Cross multiply
    64,704.72x = 89,292.33 × 36,410.43
  4. Step 4: Simplify right side
    64,704.72x = 3,251,172,131.00
  5. Step 5: Solve for x
    x = 3,251,172,131.00/64,704.72
  6. Step 6: Final answer
    x = 50,246.29

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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.