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Finding the Fourth Proportional to 11,003.78, 15,185.11 and 5,968.11

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Solution

The fourth proportional to 11,003.78, 15,185.11 and 5,968.11 is: 8,235.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,003.78 : 15,185.11 = 5,968.11 : x
  2. Step 2: Convert to fraction form
    11,003.78/15,185.11 = 5,968.11/x
  3. Step 3: Cross multiply
    11,003.78x = 15,185.11 × 5,968.11
  4. Step 4: Simplify right side
    11,003.78x = 90,626,406.84
  5. Step 5: Solve for x
    x = 90,626,406.84/11,003.78
  6. Step 6: Final answer
    x = 8,235.93

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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.