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Finding the Fourth Proportional to 64,712.77, 89,305.98 and 36,033.91

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Solution

The fourth proportional to 64,712.77, 89,305.98 and 36,033.91 is: 49,728.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,712.77 : 89,305.98 = 36,033.91 : x
  2. Step 2: Convert to fraction form
    64,712.77/89,305.98 = 36,033.91/x
  3. Step 3: Cross multiply
    64,712.77x = 89,305.98 × 36,033.91
  4. Step 4: Simplify right side
    64,712.77x = 3,218,043,422.52
  5. Step 5: Solve for x
    x = 3,218,043,422.52/64,712.77
  6. Step 6: Final answer
    x = 49,728.11

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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.