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Finding the Fourth Proportional to 8,994.20, 13,493.48 and 2,838.20

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Solution

The fourth proportional to 8,994.20, 13,493.48 and 2,838.20 is: 4,257.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,994.20 : 13,493.48 = 2,838.20 : x
  2. Step 2: Convert to fraction form
    8,994.20/13,493.48 = 2,838.20/x
  3. Step 3: Cross multiply
    8,994.20x = 13,493.48 × 2,838.20
  4. Step 4: Simplify right side
    8,994.20x = 38,297,113.28
  5. Step 5: Solve for x
    x = 38,297,113.28/8,994.20
  6. Step 6: Final answer
    x = 4,257.98

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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.