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Finding the Fourth Proportional to 9,383.08, 12,926.10 and 8,709.16

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Solution

The fourth proportional to 9,383.08, 12,926.10 and 8,709.16 is: 11,997.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,383.08 : 12,926.10 = 8,709.16 : x
  2. Step 2: Convert to fraction form
    9,383.08/12,926.10 = 8,709.16/x
  3. Step 3: Cross multiply
    9,383.08x = 12,926.10 × 8,709.16
  4. Step 4: Simplify right side
    9,383.08x = 112,575,473.08
  5. Step 5: Solve for x
    x = 112,575,473.08/9,383.08
  6. Step 6: Final answer
    x = 11,997.71

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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.