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Finding the Fourth Proportional to 5,569.11, 7,679.70 and 4,775.22

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Solution

The fourth proportional to 5,569.11, 7,679.70 and 4,775.22 is: 6,584.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,569.11 : 7,679.70 = 4,775.22 : x
  2. Step 2: Convert to fraction form
    5,569.11/7,679.70 = 4,775.22/x
  3. Step 3: Cross multiply
    5,569.11x = 7,679.70 × 4,775.22
  4. Step 4: Simplify right side
    5,569.11x = 36,672,257.03
  5. Step 5: Solve for x
    x = 36,672,257.03/5,569.11
  6. Step 6: Final answer
    x = 6,584.94

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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.