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Finding the Fourth Proportional to 8,993.05, 12,410.46 and 5,218.46

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Solution

The fourth proportional to 8,993.05, 12,410.46 and 5,218.46 is: 7,201.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,993.05 : 12,410.46 = 5,218.46 : x
  2. Step 2: Convert to fraction form
    8,993.05/12,410.46 = 5,218.46/x
  3. Step 3: Cross multiply
    8,993.05x = 12,410.46 × 5,218.46
  4. Step 4: Simplify right side
    8,993.05x = 64,763,489.09
  5. Step 5: Solve for x
    x = 64,763,489.09/8,993.05
  6. Step 6: Final answer
    x = 7,201.50

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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.