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Finding the Fourth Proportional to 64,571.96, 89,108.71 and 35,890.88

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Solution

The fourth proportional to 64,571.96, 89,108.71 and 35,890.88 is: 49,529.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,571.96 : 89,108.71 = 35,890.88 : x
  2. Step 2: Convert to fraction form
    64,571.96/89,108.71 = 35,890.88/x
  3. Step 3: Cross multiply
    64,571.96x = 89,108.71 × 35,890.88
  4. Step 4: Simplify right side
    64,571.96x = 3,198,190,017.56
  5. Step 5: Solve for x
    x = 3,198,190,017.56/64,571.96
  6. Step 6: Final answer
    x = 49,529.09

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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.