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Finding the Fourth Proportional to 10,995.34, 16,493 and 4,419.99

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Solution

The fourth proportional to 10,995.34, 16,493 and 4,419.99 is: 6,629.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,995.34 : 16,493 = 4,419.99 : x
  2. Step 2: Convert to fraction form
    10,995.34/16,493 = 4,419.99/x
  3. Step 3: Cross multiply
    10,995.34x = 16,493 × 4,419.99
  4. Step 4: Simplify right side
    10,995.34x = 72,898,812.61
  5. Step 5: Solve for x
    x = 72,898,812.61/10,995.34
  6. Step 6: Final answer
    x = 6,629.97

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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.