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Finding the Fourth Proportional to 10,999.92, 15,179.93 and 5,964.14

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Solution

The fourth proportional to 10,999.92, 15,179.93 and 5,964.14 is: 8,230.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.92 : 15,179.93 = 5,964.14 : x
  2. Step 2: Convert to fraction form
    10,999.92/15,179.93 = 5,964.14/x
  3. Step 3: Cross multiply
    10,999.92x = 15,179.93 × 5,964.14
  4. Step 4: Simplify right side
    10,999.92x = 90,535,121.99
  5. Step 5: Solve for x
    x = 90,535,121.99/10,999.92
  6. Step 6: Final answer
    x = 8,230.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.