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Finding the Fourth Proportional to 40,571.34, 60,856.34 and 13,935.84

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Solution

The fourth proportional to 40,571.34, 60,856.34 and 13,935.84 is: 20,903.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,571.34 : 60,856.34 = 13,935.84 : x
  2. Step 2: Convert to fraction form
    40,571.34/60,856.34 = 13,935.84/x
  3. Step 3: Cross multiply
    40,571.34x = 60,856.34 × 13,935.84
  4. Step 4: Simplify right side
    40,571.34x = 848,084,147.55
  5. Step 5: Solve for x
    x = 848,084,147.55/40,571.34
  6. Step 6: Final answer
    x = 20,903.53

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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.