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Finding the Fourth Proportional to 64,355.36, 88,812.80 and 36,060

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Solution

The fourth proportional to 64,355.36, 88,812.80 and 36,060 is: 49,764.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,355.36 : 88,812.80 = 36,060 : x
  2. Step 2: Convert to fraction form
    64,355.36/88,812.80 = 36,060/x
  3. Step 3: Cross multiply
    64,355.36x = 88,812.80 × 36,060
  4. Step 4: Simplify right side
    64,355.36x = 3,202,589,568
  5. Step 5: Solve for x
    x = 3,202,589,568/64,355.36
  6. Step 6: Final answer
    x = 49,764.15

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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.