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Finding the Fourth Proportional to 5,251.03, 7,245.86 and 3,012.39

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Solution

The fourth proportional to 5,251.03, 7,245.86 and 3,012.39 is: 4,156.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.03 : 7,245.86 = 3,012.39 : x
  2. Step 2: Convert to fraction form
    5,251.03/7,245.86 = 3,012.39/x
  3. Step 3: Cross multiply
    5,251.03x = 7,245.86 × 3,012.39
  4. Step 4: Simplify right side
    5,251.03x = 21,827,341.14
  5. Step 5: Solve for x
    x = 21,827,341.14/5,251.03
  6. Step 6: Final answer
    x = 4,156.78

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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.