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Finding the Fourth Proportional to 64,949.38, 89,628.33 and 36,657.70

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Solution

The fourth proportional to 64,949.38, 89,628.33 and 36,657.70 is: 50,586.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,949.38 : 89,628.33 = 36,657.70 : x
  2. Step 2: Convert to fraction form
    64,949.38/89,628.33 = 36,657.70/x
  3. Step 3: Cross multiply
    64,949.38x = 89,628.33 × 36,657.70
  4. Step 4: Simplify right side
    64,949.38x = 3,285,568,432.64
  5. Step 5: Solve for x
    x = 3,285,568,432.64/64,949.38
  6. Step 6: Final answer
    x = 50,586.60

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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.