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Finding the Fourth Proportional to 64,706.70, 89,295.21 and 36,412.41

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Solution

The fourth proportional to 64,706.70, 89,295.21 and 36,412.41 is: 50,249.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,706.70 : 89,295.21 = 36,412.41 : x
  2. Step 2: Convert to fraction form
    64,706.70/89,295.21 = 36,412.41/x
  3. Step 3: Cross multiply
    64,706.70x = 89,295.21 × 36,412.41
  4. Step 4: Simplify right side
    64,706.70x = 3,251,453,797.56
  5. Step 5: Solve for x
    x = 3,251,453,797.56/64,706.70
  6. Step 6: Final answer
    x = 50,249.11

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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.