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Finding the Fourth Proportional to 11,164.15, 16,745.07 and 5,615.23

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Solution

The fourth proportional to 11,164.15, 16,745.07 and 5,615.23 is: 8,422.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,164.15 : 16,745.07 = 5,615.23 : x
  2. Step 2: Convert to fraction form
    11,164.15/16,745.07 = 5,615.23/x
  3. Step 3: Cross multiply
    11,164.15x = 16,745.07 × 5,615.23
  4. Step 4: Simplify right side
    11,164.15x = 94,027,419.42
  5. Step 5: Solve for x
    x = 94,027,419.42/11,164.15
  6. Step 6: Final answer
    x = 8,422.26

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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.