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Finding the Fourth Proportional to 5,631.11, 7,771.25 and 3,393.33

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Solution

The fourth proportional to 5,631.11, 7,771.25 and 3,393.33 is: 4,682.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631.11 : 7,771.25 = 3,393.33 : x
  2. Step 2: Convert to fraction form
    5,631.11/7,771.25 = 3,393.33/x
  3. Step 3: Cross multiply
    5,631.11x = 7,771.25 × 3,393.33
  4. Step 4: Simplify right side
    5,631.11x = 26,370,415.76
  5. Step 5: Solve for x
    x = 26,370,415.76/5,631.11
  6. Step 6: Final answer
    x = 4,682.99

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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.