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Finding the Fourth Proportional to 64,911.42, 89,591.76 and 41,022.90

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Solution

The fourth proportional to 64,911.42, 89,591.76 and 41,022.90 is: 56,620.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,911.42 : 89,591.76 = 41,022.90 : x
  2. Step 2: Convert to fraction form
    64,911.42/89,591.76 = 41,022.90/x
  3. Step 3: Cross multiply
    64,911.42x = 89,591.76 × 41,022.90
  4. Step 4: Simplify right side
    64,911.42x = 3,675,313,811.30
  5. Step 5: Solve for x
    x = 3,675,313,811.30/64,911.42
  6. Step 6: Final answer
    x = 56,620.45

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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.