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Finding the Fourth Proportional to 53,230.30, 79,862.30 and 15,790.52

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Solution

The fourth proportional to 53,230.30, 79,862.30 and 15,790.52 is: 23,690.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,230.30 : 79,862.30 = 15,790.52 : x
  2. Step 2: Convert to fraction form
    53,230.30/79,862.30 = 15,790.52/x
  3. Step 3: Cross multiply
    53,230.30x = 79,862.30 × 15,790.52
  4. Step 4: Simplify right side
    53,230.30x = 1,261,067,245.40
  5. Step 5: Solve for x
    x = 1,261,067,245.40/53,230.30
  6. Step 6: Final answer
    x = 23,690.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.