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Finding the Fourth Proportional to 5,772.70, 8,668.84 and 5,476.78

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Solution

The fourth proportional to 5,772.70, 8,668.84 and 5,476.78 is: 8,224.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,772.70 : 8,668.84 = 5,476.78 : x
  2. Step 2: Convert to fraction form
    5,772.70/8,668.84 = 5,476.78/x
  3. Step 3: Cross multiply
    5,772.70x = 8,668.84 × 5,476.78
  4. Step 4: Simplify right side
    5,772.70x = 47,477,329.54
  5. Step 5: Solve for x
    x = 47,477,329.54/5,772.70
  6. Step 6: Final answer
    x = 8,224.46

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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.