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Finding the Fourth Proportional to 64,881.20, 89,541.24 and 36,589.52

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Solution

The fourth proportional to 64,881.20, 89,541.24 and 36,589.52 is: 50,496.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,881.20 : 89,541.24 = 36,589.52 : x
  2. Step 2: Convert to fraction form
    64,881.20/89,541.24 = 36,589.52/x
  3. Step 3: Cross multiply
    64,881.20x = 89,541.24 × 36,589.52
  4. Step 4: Simplify right side
    64,881.20x = 3,276,270,991.80
  5. Step 5: Solve for x
    x = 3,276,270,991.80/64,881.20
  6. Step 6: Final answer
    x = 50,496.46

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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.