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Finding the Fourth Proportional to 64,761.64, 89,372.70 and 36,468.28

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Solution

The fourth proportional to 64,761.64, 89,372.70 and 36,468.28 is: 50,327.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,761.64 : 89,372.70 = 36,468.28 : x
  2. Step 2: Convert to fraction form
    64,761.64/89,372.70 = 36,468.28/x
  3. Step 3: Cross multiply
    64,761.64x = 89,372.70 × 36,468.28
  4. Step 4: Simplify right side
    64,761.64x = 3,259,268,647.96
  5. Step 5: Solve for x
    x = 3,259,268,647.96/64,761.64
  6. Step 6: Final answer
    x = 50,327.15

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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.