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Finding the Fourth Proportional to 8,674.74, 13,008.24 and 3,993.60

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Solution

The fourth proportional to 8,674.74, 13,008.24 and 3,993.60 is: 5,988.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674.74 : 13,008.24 = 3,993.60 : x
  2. Step 2: Convert to fraction form
    8,674.74/13,008.24 = 3,993.60/x
  3. Step 3: Cross multiply
    8,674.74x = 13,008.24 × 3,993.60
  4. Step 4: Simplify right side
    8,674.74x = 51,949,707.26
  5. Step 5: Solve for x
    x = 51,949,707.26/8,674.74
  6. Step 6: Final answer
    x = 5,988.62

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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.