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Finding the Fourth Proportional to 3,792.64, 5,680.11 and 3,661.26

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Solution

The fourth proportional to 3,792.64, 5,680.11 and 3,661.26 is: 5,483.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,792.64 : 5,680.11 = 3,661.26 : x
  2. Step 2: Convert to fraction form
    3,792.64/5,680.11 = 3,661.26/x
  3. Step 3: Cross multiply
    3,792.64x = 5,680.11 × 3,661.26
  4. Step 4: Simplify right side
    3,792.64x = 20,796,359.54
  5. Step 5: Solve for x
    x = 20,796,359.54/3,792.64
  6. Step 6: Final answer
    x = 5,483.35

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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.