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Finding the Fourth Proportional to 8,348.70, 12,522.70 and 2,108.62

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Solution

The fourth proportional to 8,348.70, 12,522.70 and 2,108.62 is: 3,162.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,348.70 : 12,522.70 = 2,108.62 : x
  2. Step 2: Convert to fraction form
    8,348.70/12,522.70 = 2,108.62/x
  3. Step 3: Cross multiply
    8,348.70x = 12,522.70 × 2,108.62
  4. Step 4: Simplify right side
    8,348.70x = 26,405,615.67
  5. Step 5: Solve for x
    x = 26,405,615.67/8,348.70
  6. Step 6: Final answer
    x = 3,162.84

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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.