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Finding the Fourth Proportional to 3,703.80, 5,107.86 and 2,375.16

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Solution

The fourth proportional to 3,703.80, 5,107.86 and 2,375.16 is: 3,275.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,703.80 : 5,107.86 = 2,375.16 : x
  2. Step 2: Convert to fraction form
    3,703.80/5,107.86 = 2,375.16/x
  3. Step 3: Cross multiply
    3,703.80x = 5,107.86 × 2,375.16
  4. Step 4: Simplify right side
    3,703.80x = 12,131,984.76
  5. Step 5: Solve for x
    x = 12,131,984.76/3,703.80
  6. Step 6: Final answer
    x = 3,275.55

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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.