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Finding the Fourth Proportional to 8,892.62, 13,331.46 and 4,209.92

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Solution

The fourth proportional to 8,892.62, 13,331.46 and 4,209.92 is: 6,311.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,892.62 : 13,331.46 = 4,209.92 : x
  2. Step 2: Convert to fraction form
    8,892.62/13,331.46 = 4,209.92/x
  3. Step 3: Cross multiply
    8,892.62x = 13,331.46 × 4,209.92
  4. Step 4: Simplify right side
    8,892.62x = 56,124,380.08
  5. Step 5: Solve for x
    x = 56,124,380.08/8,892.62
  6. Step 6: Final answer
    x = 6,311.34

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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.