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Finding the Fourth Proportional to 64,555.68, 89,086.89 and 36,261.39

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Solution

The fourth proportional to 64,555.68, 89,086.89 and 36,261.39 is: 50,040.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,555.68 : 89,086.89 = 36,261.39 : x
  2. Step 2: Convert to fraction form
    64,555.68/89,086.89 = 36,261.39/x
  3. Step 3: Cross multiply
    64,555.68x = 89,086.89 × 36,261.39
  4. Step 4: Simplify right side
    64,555.68x = 3,230,414,462.18
  5. Step 5: Solve for x
    x = 3,230,414,462.18/64,555.68
  6. Step 6: Final answer
    x = 50,040.75

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1.5x scale

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.