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Finding the Fourth Proportional to 3,762.77, 5,193.45 and 2,191.77

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Solution

The fourth proportional to 3,762.77, 5,193.45 and 2,191.77 is: 3,025.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,762.77 : 5,193.45 = 2,191.77 : x
  2. Step 2: Convert to fraction form
    3,762.77/5,193.45 = 2,191.77/x
  3. Step 3: Cross multiply
    3,762.77x = 5,193.45 × 2,191.77
  4. Step 4: Simplify right side
    3,762.77x = 11,382,847.91
  5. Step 5: Solve for x
    x = 11,382,847.91/3,762.77
  6. Step 6: Final answer
    x = 3,025.13

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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.