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Finding the Fourth Proportional to 11,259.92, 16,885.02 and 3,865.10

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Solution

The fourth proportional to 11,259.92, 16,885.02 and 3,865.10 is: 5,795.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,259.92 : 16,885.02 = 3,865.10 : x
  2. Step 2: Convert to fraction form
    11,259.92/16,885.02 = 3,865.10/x
  3. Step 3: Cross multiply
    11,259.92x = 16,885.02 × 3,865.10
  4. Step 4: Simplify right side
    11,259.92x = 65,262,290.80
  5. Step 5: Solve for x
    x = 65,262,290.80/11,259.92
  6. Step 6: Final answer
    x = 5,795.98

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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.