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Finding the Fourth Proportional to 6,673.54, 9,209.75 and 4,431.55

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Solution

The fourth proportional to 6,673.54, 9,209.75 and 4,431.55 is: 6,115.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,673.54 : 9,209.75 = 4,431.55 : x
  2. Step 2: Convert to fraction form
    6,673.54/9,209.75 = 4,431.55/x
  3. Step 3: Cross multiply
    6,673.54x = 9,209.75 × 4,431.55
  4. Step 4: Simplify right side
    6,673.54x = 40,813,467.61
  5. Step 5: Solve for x
    x = 40,813,467.61/6,673.54
  6. Step 6: Final answer
    x = 6,115.71

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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.