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Finding the Fourth Proportional to 11,259.99, 16,890.03 and 3,866.58

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Solution

The fourth proportional to 11,259.99, 16,890.03 and 3,866.58 is: 5,799.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,259.99 : 16,890.03 = 3,866.58 : x
  2. Step 2: Convert to fraction form
    11,259.99/16,890.03 = 3,866.58/x
  3. Step 3: Cross multiply
    11,259.99x = 16,890.03 × 3,866.58
  4. Step 4: Simplify right side
    11,259.99x = 65,306,652.20
  5. Step 5: Solve for x
    x = 65,306,652.20/11,259.99
  6. Step 6: Final answer
    x = 5,799.89

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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.