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Finding the Fourth Proportional to 4,993.10, 7,489.65 and 4,960.70

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Solution

The fourth proportional to 4,993.10, 7,489.65 and 4,960.70 is: 7,441.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,993.10 : 7,489.65 = 4,960.70 : x
  2. Step 2: Convert to fraction form
    4,993.10/7,489.65 = 4,960.70/x
  3. Step 3: Cross multiply
    4,993.10x = 7,489.65 × 4,960.70
  4. Step 4: Simplify right side
    4,993.10x = 37,153,906.76
  5. Step 5: Solve for x
    x = 37,153,906.76/4,993.10
  6. Step 6: Final answer
    x = 7,441.05

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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.