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Finding the Fourth Proportional to 11,334.80, 16,994.10 and 5,089.70

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Solution

The fourth proportional to 11,334.80, 16,994.10 and 5,089.70 is: 7,630.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,334.80 : 16,994.10 = 5,089.70 : x
  2. Step 2: Convert to fraction form
    11,334.80/16,994.10 = 5,089.70/x
  3. Step 3: Cross multiply
    11,334.80x = 16,994.10 × 5,089.70
  4. Step 4: Simplify right side
    11,334.80x = 86,494,870.77
  5. Step 5: Solve for x
    x = 86,494,870.77/11,334.80
  6. Step 6: Final answer
    x = 7,630.91

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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.