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Finding the Fourth Proportional to 64,841.36, 89,475.70 and 36,554

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Solution

The fourth proportional to 64,841.36, 89,475.70 and 36,554 is: 50,441.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,841.36 : 89,475.70 = 36,554 : x
  2. Step 2: Convert to fraction form
    64,841.36/89,475.70 = 36,554/x
  3. Step 3: Cross multiply
    64,841.36x = 89,475.70 × 36,554
  4. Step 4: Simplify right side
    64,841.36x = 3,270,694,737.80
  5. Step 5: Solve for x
    x = 3,270,694,737.80/64,841.36
  6. Step 6: Final answer
    x = 50,441.49

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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.