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Finding the Fourth Proportional to 3,762.51, 5,192.13 and 2,190.57

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Solution

The fourth proportional to 3,762.51, 5,192.13 and 2,190.57 is: 3,022.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,762.51 : 5,192.13 = 2,190.57 : x
  2. Step 2: Convert to fraction form
    3,762.51/5,192.13 = 2,190.57/x
  3. Step 3: Cross multiply
    3,762.51x = 5,192.13 × 2,190.57
  4. Step 4: Simplify right side
    3,762.51x = 11,373,724.21
  5. Step 5: Solve for x
    x = 11,373,724.21/3,762.51
  6. Step 6: Final answer
    x = 3,022.91

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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.