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Finding the Fourth Proportional to 6,251.13, 8,619.69 and 4,012.16

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Solution

The fourth proportional to 6,251.13, 8,619.69 and 4,012.16 is: 5,532.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,251.13 : 8,619.69 = 4,012.16 : x
  2. Step 2: Convert to fraction form
    6,251.13/8,619.69 = 4,012.16/x
  3. Step 3: Cross multiply
    6,251.13x = 8,619.69 × 4,012.16
  4. Step 4: Simplify right side
    6,251.13x = 34,583,575.43
  5. Step 5: Solve for x
    x = 34,583,575.43/6,251.13
  6. Step 6: Final answer
    x = 5,532.37

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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.