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Finding the Fourth Proportional to 8,992.32, 13,469.88 and 8,336.16

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Solution

The fourth proportional to 8,992.32, 13,469.88 and 8,336.16 is: 12,487.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,992.32 : 13,469.88 = 8,336.16 : x
  2. Step 2: Convert to fraction form
    8,992.32/13,469.88 = 8,336.16/x
  3. Step 3: Cross multiply
    8,992.32x = 13,469.88 × 8,336.16
  4. Step 4: Simplify right side
    8,992.32x = 112,287,074.86
  5. Step 5: Solve for x
    x = 112,287,074.86/8,992.32
  6. Step 6: Final answer
    x = 12,487.00

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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.