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Finding the Fourth Proportional to 10,933.80, 16,408.80 and 8,017.80

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Solution

The fourth proportional to 10,933.80, 16,408.80 and 8,017.80 is: 12,032.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,933.80 : 16,408.80 = 8,017.80 : x
  2. Step 2: Convert to fraction form
    10,933.80/16,408.80 = 8,017.80/x
  3. Step 3: Cross multiply
    10,933.80x = 16,408.80 × 8,017.80
  4. Step 4: Simplify right side
    10,933.80x = 131,562,476.64
  5. Step 5: Solve for x
    x = 131,562,476.64/10,933.80
  6. Step 6: Final answer
    x = 12,032.64

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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.