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Finding the Fourth Proportional to 8,272.86, 12,416.58 and 6,975.24

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Solution

The fourth proportional to 8,272.86, 12,416.58 and 6,975.24 is: 10,469.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,272.86 : 12,416.58 = 6,975.24 : x
  2. Step 2: Convert to fraction form
    8,272.86/12,416.58 = 6,975.24/x
  3. Step 3: Cross multiply
    8,272.86x = 12,416.58 × 6,975.24
  4. Step 4: Simplify right side
    8,272.86x = 86,608,625.48
  5. Step 5: Solve for x
    x = 86,608,625.48/8,272.86
  6. Step 6: Final answer
    x = 10,469.01

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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.