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Finding the Fourth Proportional to 7,149.94, 10,724.88 and 3,254.62

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Solution

The fourth proportional to 7,149.94, 10,724.88 and 3,254.62 is: 4,881.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149.94 : 10,724.88 = 3,254.62 : x
  2. Step 2: Convert to fraction form
    7,149.94/10,724.88 = 3,254.62/x
  3. Step 3: Cross multiply
    7,149.94x = 10,724.88 × 3,254.62
  4. Step 4: Simplify right side
    7,149.94x = 34,905,408.95
  5. Step 5: Solve for x
    x = 34,905,408.95/7,149.94
  6. Step 6: Final answer
    x = 4,881.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.