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Finding the Fourth Proportional to 52,893.30, 72,992.31 and 28,694.19

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Solution

The fourth proportional to 52,893.30, 72,992.31 and 28,694.19 is: 39,597.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,893.30 : 72,992.31 = 28,694.19 : x
  2. Step 2: Convert to fraction form
    52,893.30/72,992.31 = 28,694.19/x
  3. Step 3: Cross multiply
    52,893.30x = 72,992.31 × 28,694.19
  4. Step 4: Simplify right side
    52,893.30x = 2,094,455,211.68
  5. Step 5: Solve for x
    x = 2,094,455,211.68/52,893.30
  6. Step 6: Final answer
    x = 39,597.74

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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.