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Finding the Fourth Proportional to 10,888.85, 16,333.31 and 2,991.49

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Solution

The fourth proportional to 10,888.85, 16,333.31 and 2,991.49 is: 4,487.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,888.85 : 16,333.31 = 2,991.49 : x
  2. Step 2: Convert to fraction form
    10,888.85/16,333.31 = 2,991.49/x
  3. Step 3: Cross multiply
    10,888.85x = 16,333.31 × 2,991.49
  4. Step 4: Simplify right side
    10,888.85x = 48,860,933.53
  5. Step 5: Solve for x
    x = 48,860,933.53/10,888.85
  6. Step 6: Final answer
    x = 4,487.24

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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.