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Finding the Fourth Proportional to 48,990.92, 73,486.98 and 13,930.52

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Solution

The fourth proportional to 48,990.92, 73,486.98 and 13,930.52 is: 20,895.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,990.92 : 73,486.98 = 13,930.52 : x
  2. Step 2: Convert to fraction form
    48,990.92/73,486.98 = 13,930.52/x
  3. Step 3: Cross multiply
    48,990.92x = 73,486.98 × 13,930.52
  4. Step 4: Simplify right side
    48,990.92x = 1,023,711,844.63
  5. Step 5: Solve for x
    x = 1,023,711,844.63/48,990.92
  6. Step 6: Final answer
    x = 20,895.95

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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.