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Finding the Fourth Proportional to 8,349.70, 12,524.20 and 2,109.62

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Solution

The fourth proportional to 8,349.70, 12,524.20 and 2,109.62 is: 3,164.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,349.70 : 12,524.20 = 2,109.62 : x
  2. Step 2: Convert to fraction form
    8,349.70/12,524.20 = 2,109.62/x
  3. Step 3: Cross multiply
    8,349.70x = 12,524.20 × 2,109.62
  4. Step 4: Simplify right side
    8,349.70x = 26,421,302.80
  5. Step 5: Solve for x
    x = 26,421,302.80/8,349.70
  6. Step 6: Final answer
    x = 3,164.34

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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.