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Finding the Fourth Proportional to 2,795.76, 3,858.14 and 1,536.84

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Solution

The fourth proportional to 2,795.76, 3,858.14 and 1,536.84 is: 2,120.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,795.76 : 3,858.14 = 1,536.84 : x
  2. Step 2: Convert to fraction form
    2,795.76/3,858.14 = 1,536.84/x
  3. Step 3: Cross multiply
    2,795.76x = 3,858.14 × 1,536.84
  4. Step 4: Simplify right side
    2,795.76x = 5,929,343.88
  5. Step 5: Solve for x
    x = 5,929,343.88/2,795.76
  6. Step 6: Final answer
    x = 2,120.83

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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.