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Finding the Fourth Proportional to 3,425.15, 4,724.29 and 2,099.49

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Solution

The fourth proportional to 3,425.15, 4,724.29 and 2,099.49 is: 2,895.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,425.15 : 4,724.29 = 2,099.49 : x
  2. Step 2: Convert to fraction form
    3,425.15/4,724.29 = 2,099.49/x
  3. Step 3: Cross multiply
    3,425.15x = 4,724.29 × 2,099.49
  4. Step 4: Simplify right side
    3,425.15x = 9,918,599.61
  5. Step 5: Solve for x
    x = 9,918,599.61/3,425.15
  6. Step 6: Final answer
    x = 2,895.81

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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.