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Finding the Fourth Proportional to 9,799.20, 14,698.80 and 3,223.80

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Solution

The fourth proportional to 9,799.20, 14,698.80 and 3,223.80 is: 4,835.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,799.20 : 14,698.80 = 3,223.80 : x
  2. Step 2: Convert to fraction form
    9,799.20/14,698.80 = 3,223.80/x
  3. Step 3: Cross multiply
    9,799.20x = 14,698.80 × 3,223.80
  4. Step 4: Simplify right side
    9,799.20x = 47,385,991.44
  5. Step 5: Solve for x
    x = 47,385,991.44/9,799.20
  6. Step 6: Final answer
    x = 4,835.70

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Similar ratio
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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.