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Finding the Fourth Proportional to 10,990.94, 16,489.01 and 3,595.99

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Solution

The fourth proportional to 10,990.94, 16,489.01 and 3,595.99 is: 5,394.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.94 : 16,489.01 = 3,595.99 : x
  2. Step 2: Convert to fraction form
    10,990.94/16,489.01 = 3,595.99/x
  3. Step 3: Cross multiply
    10,990.94x = 16,489.01 × 3,595.99
  4. Step 4: Simplify right side
    10,990.94x = 59,294,315.07
  5. Step 5: Solve for x
    x = 59,294,315.07/10,990.94
  6. Step 6: Final answer
    x = 5,394.84

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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.