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Finding the Fourth Proportional to 11,161.16, 16,741.74 and 8,697.82

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Solution

The fourth proportional to 11,161.16, 16,741.74 and 8,697.82 is: 13,046.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,161.16 : 16,741.74 = 8,697.82 : x
  2. Step 2: Convert to fraction form
    11,161.16/16,741.74 = 8,697.82/x
  3. Step 3: Cross multiply
    11,161.16x = 16,741.74 × 8,697.82
  4. Step 4: Simplify right side
    11,161.16x = 145,616,597.52
  5. Step 5: Solve for x
    x = 145,616,597.52/11,161.16
  6. Step 6: Final answer
    x = 13,046.73

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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.