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Finding the Fourth Proportional to 57,887.84, 86,859.69 and 50,405.60

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Solution

The fourth proportional to 57,887.84, 86,859.69 and 50,405.60 is: 75,632.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,887.84 : 86,859.69 = 50,405.60 : x
  2. Step 2: Convert to fraction form
    57,887.84/86,859.69 = 50,405.60/x
  3. Step 3: Cross multiply
    57,887.84x = 86,859.69 × 50,405.60
  4. Step 4: Simplify right side
    57,887.84x = 4,378,214,790.26
  5. Step 5: Solve for x
    x = 4,378,214,790.26/57,887.84
  6. Step 6: Final answer
    x = 75,632.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.