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Finding the Fourth Proportional to 10,913.03, 16,371.20 and 5,573.28

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Solution

The fourth proportional to 10,913.03, 16,371.20 and 5,573.28 is: 8,360.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.03 : 16,371.20 = 5,573.28 : x
  2. Step 2: Convert to fraction form
    10,913.03/16,371.20 = 5,573.28/x
  3. Step 3: Cross multiply
    10,913.03x = 16,371.20 × 5,573.28
  4. Step 4: Simplify right side
    10,913.03x = 91,241,253.67
  5. Step 5: Solve for x
    x = 91,241,253.67/10,913.03
  6. Step 6: Final answer
    x = 8,360.77

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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.