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Finding the Fourth Proportional to 64,660.89, 89,232.84 and 36,366.58

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Solution

The fourth proportional to 64,660.89, 89,232.84 and 36,366.58 is: 50,186.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,660.89 : 89,232.84 = 36,366.58 : x
  2. Step 2: Convert to fraction form
    64,660.89/89,232.84 = 36,366.58/x
  3. Step 3: Cross multiply
    64,660.89x = 89,232.84 × 36,366.58
  4. Step 4: Simplify right side
    64,660.89x = 3,245,092,991.41
  5. Step 5: Solve for x
    x = 3,245,092,991.41/64,660.89
  6. Step 6: Final answer
    x = 50,186.33

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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.