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Finding the Fourth Proportional to 52,578.92, 72,558.36 and 28,705.52

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Solution

The fourth proportional to 52,578.92, 72,558.36 and 28,705.52 is: 39,613.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,578.92 : 72,558.36 = 28,705.52 : x
  2. Step 2: Convert to fraction form
    52,578.92/72,558.36 = 28,705.52/x
  3. Step 3: Cross multiply
    52,578.92x = 72,558.36 × 28,705.52
  4. Step 4: Simplify right side
    52,578.92x = 2,082,825,454.15
  5. Step 5: Solve for x
    x = 2,082,825,454.15/52,578.92
  6. Step 6: Final answer
    x = 39,613.32

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.