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Finding the Fourth Proportional to 11,076.12, 16,619.04 and 7,619.04

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Solution

The fourth proportional to 11,076.12, 16,619.04 and 7,619.04 is: 11,431.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,076.12 : 16,619.04 = 7,619.04 : x
  2. Step 2: Convert to fraction form
    11,076.12/16,619.04 = 7,619.04/x
  3. Step 3: Cross multiply
    11,076.12x = 16,619.04 × 7,619.04
  4. Step 4: Simplify right side
    11,076.12x = 126,621,130.52
  5. Step 5: Solve for x
    x = 126,621,130.52/11,076.12
  6. Step 6: Final answer
    x = 11,431.90

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1.5x scale

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.