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Finding the Fourth Proportional to 10,862.33, 16,305.02 and 9,620.99

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Solution

The fourth proportional to 10,862.33, 16,305.02 and 9,620.99 is: 14,441.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,862.33 : 16,305.02 = 9,620.99 : x
  2. Step 2: Convert to fraction form
    10,862.33/16,305.02 = 9,620.99/x
  3. Step 3: Cross multiply
    10,862.33x = 16,305.02 × 9,620.99
  4. Step 4: Simplify right side
    10,862.33x = 156,870,352.84
  5. Step 5: Solve for x
    x = 156,870,352.84/10,862.33
  6. Step 6: Final answer
    x = 14,441.69

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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.