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Finding the Fourth Proportional to 64,513.68, 89,028.99 and 36,219.57

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Solution

The fourth proportional to 64,513.68, 89,028.99 and 36,219.57 is: 49,983.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,513.68 : 89,028.99 = 36,219.57 : x
  2. Step 2: Convert to fraction form
    64,513.68/89,028.99 = 36,219.57/x
  3. Step 3: Cross multiply
    64,513.68x = 89,028.99 × 36,219.57
  4. Step 4: Simplify right side
    64,513.68x = 3,224,591,735.33
  5. Step 5: Solve for x
    x = 3,224,591,735.33/64,513.68
  6. Step 6: Final answer
    x = 49,983.07

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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.