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Finding the Fourth Proportional to 8,486.08, 11,716.62 and 6,493.16

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Solution

The fourth proportional to 8,486.08, 11,716.62 and 6,493.16 is: 8,965.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,486.08 : 11,716.62 = 6,493.16 : x
  2. Step 2: Convert to fraction form
    8,486.08/11,716.62 = 6,493.16/x
  3. Step 3: Cross multiply
    8,486.08x = 11,716.62 × 6,493.16
  4. Step 4: Simplify right side
    8,486.08x = 76,077,888.32
  5. Step 5: Solve for x
    x = 76,077,888.32/8,486.08
  6. Step 6: Final answer
    x = 8,965.02

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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.