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Finding the Fourth Proportional to 2,798.33, 3,859.74 and 2,375.77

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Solution

The fourth proportional to 2,798.33, 3,859.74 and 2,375.77 is: 3,276.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798.33 : 3,859.74 = 2,375.77 : x
  2. Step 2: Convert to fraction form
    2,798.33/3,859.74 = 2,375.77/x
  3. Step 3: Cross multiply
    2,798.33x = 3,859.74 × 2,375.77
  4. Step 4: Simplify right side
    2,798.33x = 9,169,854.50
  5. Step 5: Solve for x
    x = 9,169,854.50/2,798.33
  6. Step 6: Final answer
    x = 3,276.90

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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.