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Finding the Fourth Proportional to 8,936.91, 13,345.17 and 7,296.66

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Solution

The fourth proportional to 8,936.91, 13,345.17 and 7,296.66 is: 10,895.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936.91 : 13,345.17 = 7,296.66 : x
  2. Step 2: Convert to fraction form
    8,936.91/13,345.17 = 7,296.66/x
  3. Step 3: Cross multiply
    8,936.91x = 13,345.17 × 7,296.66
  4. Step 4: Simplify right side
    8,936.91x = 97,375,168.13
  5. Step 5: Solve for x
    x = 97,375,168.13/8,936.91
  6. Step 6: Final answer
    x = 10,895.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.