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Finding the Fourth Proportional to 52,735.38, 72,774.39 and 28,861.99

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Solution

The fourth proportional to 52,735.38, 72,774.39 and 28,861.99 is: 39,829.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,735.38 : 72,774.39 = 28,861.99 : x
  2. Step 2: Convert to fraction form
    52,735.38/72,774.39 = 28,861.99/x
  3. Step 3: Cross multiply
    52,735.38x = 72,774.39 × 28,861.99
  4. Step 4: Simplify right side
    52,735.38x = 2,100,413,889.74
  5. Step 5: Solve for x
    x = 2,100,413,889.74/52,735.38
  6. Step 6: Final answer
    x = 39,829.31

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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.