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Finding the Fourth Proportional to 52,770.59, 72,821.22 and 28,896.85

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Solution

The fourth proportional to 52,770.59, 72,821.22 and 28,896.85 is: 39,876.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,770.59 : 72,821.22 = 28,896.85 : x
  2. Step 2: Convert to fraction form
    52,770.59/72,821.22 = 28,896.85/x
  3. Step 3: Cross multiply
    52,770.59x = 72,821.22 × 28,896.85
  4. Step 4: Simplify right side
    52,770.59x = 2,104,303,979.52
  5. Step 5: Solve for x
    x = 2,104,303,979.52/52,770.59
  6. Step 6: Final answer
    x = 39,876.46

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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.