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Finding the Fourth Proportional to 52,734.87, 72,774.03 and 28,861.54

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Solution

The fourth proportional to 52,734.87, 72,774.03 and 28,861.54 is: 39,828.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,734.87 : 72,774.03 = 28,861.54 : x
  2. Step 2: Convert to fraction form
    52,734.87/72,774.03 = 28,861.54/x
  3. Step 3: Cross multiply
    52,734.87x = 72,774.03 × 28,861.54
  4. Step 4: Simplify right side
    52,734.87x = 2,100,370,504.10
  5. Step 5: Solve for x
    x = 2,100,370,504.10/52,734.87
  6. Step 6: Final answer
    x = 39,828.87

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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.