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Finding the Fourth Proportional to 64,951.13, 89,630.75 and 36,659.45

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Solution

The fourth proportional to 64,951.13, 89,630.75 and 36,659.45 is: 50,589.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,951.13 : 89,630.75 = 36,659.45 : x
  2. Step 2: Convert to fraction form
    64,951.13/89,630.75 = 36,659.45/x
  3. Step 3: Cross multiply
    64,951.13x = 89,630.75 × 36,659.45
  4. Step 4: Simplify right side
    64,951.13x = 3,285,813,814.79
  5. Step 5: Solve for x
    x = 3,285,813,814.79/64,951.13
  6. Step 6: Final answer
    x = 50,589.02

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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.