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Finding the Fourth Proportional to 5,074.64, 7,003.22 and 2,836.51

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Solution

The fourth proportional to 5,074.64, 7,003.22 and 2,836.51 is: 3,914.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,074.64 : 7,003.22 = 2,836.51 : x
  2. Step 2: Convert to fraction form
    5,074.64/7,003.22 = 2,836.51/x
  3. Step 3: Cross multiply
    5,074.64x = 7,003.22 × 2,836.51
  4. Step 4: Simplify right side
    5,074.64x = 19,864,703.56
  5. Step 5: Solve for x
    x = 19,864,703.56/5,074.64
  6. Step 6: Final answer
    x = 3,914.50

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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.