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Finding the Fourth Proportional to 64,760.52, 89,369.22 and 36,080.49

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Solution

The fourth proportional to 64,760.52, 89,369.22 and 36,080.49 is: 49,790.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,760.52 : 89,369.22 = 36,080.49 : x
  2. Step 2: Convert to fraction form
    64,760.52/89,369.22 = 36,080.49/x
  3. Step 3: Cross multiply
    64,760.52x = 89,369.22 × 36,080.49
  4. Step 4: Simplify right side
    64,760.52x = 3,224,485,248.52
  5. Step 5: Solve for x
    x = 3,224,485,248.52/64,760.52
  6. Step 6: Final answer
    x = 49,790.91

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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.