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Finding the Fourth Proportional to 10,999.62, 15,179.47 and 5,964.01

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Solution

The fourth proportional to 10,999.62, 15,179.47 and 5,964.01 is: 8,230.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.62 : 15,179.47 = 5,964.01 : x
  2. Step 2: Convert to fraction form
    10,999.62/15,179.47 = 5,964.01/x
  3. Step 3: Cross multiply
    10,999.62x = 15,179.47 × 5,964.01
  4. Step 4: Simplify right side
    10,999.62x = 90,530,458.02
  5. Step 5: Solve for x
    x = 90,530,458.02/10,999.62
  6. Step 6: Final answer
    x = 8,230.33

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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.