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Finding the Fourth Proportional to 64,708.76, 89,297.91 and 36,414.45

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Solution

The fourth proportional to 64,708.76, 89,297.91 and 36,414.45 is: 50,251.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,708.76 : 89,297.91 = 36,414.45 : x
  2. Step 2: Convert to fraction form
    64,708.76/89,297.91 = 36,414.45/x
  3. Step 3: Cross multiply
    64,708.76x = 89,297.91 × 36,414.45
  4. Step 4: Simplify right side
    64,708.76x = 3,251,734,278.80
  5. Step 5: Solve for x
    x = 3,251,734,278.80/64,708.76
  6. Step 6: Final answer
    x = 50,251.84

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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.