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Finding the Fourth Proportional to 60,352.83, 90,498.87 and 20,899.35

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Solution

The fourth proportional to 60,352.83, 90,498.87 and 20,899.35 is: 31,338.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,352.83 : 90,498.87 = 20,899.35 : x
  2. Step 2: Convert to fraction form
    60,352.83/90,498.87 = 20,899.35/x
  3. Step 3: Cross multiply
    60,352.83x = 90,498.87 × 20,899.35
  4. Step 4: Simplify right side
    60,352.83x = 1,891,367,558.73
  5. Step 5: Solve for x
    x = 1,891,367,558.73/60,352.83
  6. Step 6: Final answer
    x = 31,338.51

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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.