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Finding the Fourth Proportional to 52,901.86, 79,352.41 and 13,458.63

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Solution

The fourth proportional to 52,901.86, 79,352.41 and 13,458.63 is: 20,187.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,901.86 : 79,352.41 = 13,458.63 : x
  2. Step 2: Convert to fraction form
    52,901.86/79,352.41 = 13,458.63/x
  3. Step 3: Cross multiply
    52,901.86x = 79,352.41 × 13,458.63
  4. Step 4: Simplify right side
    52,901.86x = 1,067,974,725.80
  5. Step 5: Solve for x
    x = 1,067,974,725.80/52,901.86
  6. Step 6: Final answer
    x = 20,187.85

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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.