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Finding the Fourth Proportional to 40,322.70, 60,469.65 and 14,028.30

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Solution

The fourth proportional to 40,322.70, 60,469.65 and 14,028.30 is: 21,037.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,322.70 : 60,469.65 = 14,028.30 : x
  2. Step 2: Convert to fraction form
    40,322.70/60,469.65 = 14,028.30/x
  3. Step 3: Cross multiply
    40,322.70x = 60,469.65 × 14,028.30
  4. Step 4: Simplify right side
    40,322.70x = 848,286,391.10
  5. Step 5: Solve for x
    x = 848,286,391.10/40,322.70
  6. Step 6: Final answer
    x = 21,037.44

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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.