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Finding the Fourth Proportional to 10,990.58, 16,490.42 and 6,059.79

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Solution

The fourth proportional to 10,990.58, 16,490.42 and 6,059.79 is: 9,092.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.58 : 16,490.42 = 6,059.79 : x
  2. Step 2: Convert to fraction form
    10,990.58/16,490.42 = 6,059.79/x
  3. Step 3: Cross multiply
    10,990.58x = 16,490.42 × 6,059.79
  4. Step 4: Simplify right side
    10,990.58x = 99,928,451.91
  5. Step 5: Solve for x
    x = 99,928,451.91/10,990.58
  6. Step 6: Final answer
    x = 9,092.20

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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.