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Finding the Fourth Proportional to 64,396.71, 88,868.19 and 35,716.94

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Solution

The fourth proportional to 64,396.71, 88,868.19 and 35,716.94 is: 49,289.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,396.71 : 88,868.19 = 35,716.94 : x
  2. Step 2: Convert to fraction form
    64,396.71/88,868.19 = 35,716.94/x
  3. Step 3: Cross multiply
    64,396.71x = 88,868.19 × 35,716.94
  4. Step 4: Simplify right side
    64,396.71x = 3,174,099,365.80
  5. Step 5: Solve for x
    x = 3,174,099,365.80/64,396.71
  6. Step 6: Final answer
    x = 49,289.78

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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.