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Finding the Fourth Proportional to 52,716.56, 72,751.02 and 28,845.32

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Solution

The fourth proportional to 52,716.56, 72,751.02 and 28,845.32 is: 39,807.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,716.56 : 72,751.02 = 28,845.32 : x
  2. Step 2: Convert to fraction form
    52,716.56/72,751.02 = 28,845.32/x
  3. Step 3: Cross multiply
    52,716.56x = 72,751.02 × 28,845.32
  4. Step 4: Simplify right side
    52,716.56x = 2,098,526,452.23
  5. Step 5: Solve for x
    x = 2,098,526,452.23/52,716.56
  6. Step 6: Final answer
    x = 39,807.73

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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.