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Finding the Fourth Proportional to 5,074.31, 7,002.43 and 2,836.22

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Solution

The fourth proportional to 5,074.31, 7,002.43 and 2,836.22 is: 3,913.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,074.31 : 7,002.43 = 2,836.22 : x
  2. Step 2: Convert to fraction form
    5,074.31/7,002.43 = 2,836.22/x
  3. Step 3: Cross multiply
    5,074.31x = 7,002.43 × 2,836.22
  4. Step 4: Simplify right side
    5,074.31x = 19,860,389.91
  5. Step 5: Solve for x
    x = 19,860,389.91/5,074.31
  6. Step 6: Final answer
    x = 3,913.91

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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.