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Finding the Fourth Proportional to 3,054.12, 4,213.14 and 1,933.18

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Solution

The fourth proportional to 3,054.12, 4,213.14 and 1,933.18 is: 2,666.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,054.12 : 4,213.14 = 1,933.18 : x
  2. Step 2: Convert to fraction form
    3,054.12/4,213.14 = 1,933.18/x
  3. Step 3: Cross multiply
    3,054.12x = 4,213.14 × 1,933.18
  4. Step 4: Simplify right side
    3,054.12x = 8,144,757.99
  5. Step 5: Solve for x
    x = 8,144,757.99/3,054.12
  6. Step 6: Final answer
    x = 2,666.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.