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Finding the Fourth Proportional to 64,955.56, 89,642.82 and 36,650.92

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Solution

The fourth proportional to 64,955.56, 89,642.82 and 36,650.92 is: 50,580.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,955.56 : 89,642.82 = 36,650.92 : x
  2. Step 2: Convert to fraction form
    64,955.56/89,642.82 = 36,650.92/x
  3. Step 3: Cross multiply
    64,955.56x = 89,642.82 × 36,650.92
  4. Step 4: Simplify right side
    64,955.56x = 3,285,491,824.39
  5. Step 5: Solve for x
    x = 3,285,491,824.39/64,955.56
  6. Step 6: Final answer
    x = 50,580.61

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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.