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Finding the Fourth Proportional to 7,212.66, 10,817.74 and 2,017.32

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Solution

The fourth proportional to 7,212.66, 10,817.74 and 2,017.32 is: 3,025.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.66 : 10,817.74 = 2,017.32 : x
  2. Step 2: Convert to fraction form
    7,212.66/10,817.74 = 2,017.32/x
  3. Step 3: Cross multiply
    7,212.66x = 10,817.74 × 2,017.32
  4. Step 4: Simplify right side
    7,212.66x = 21,822,843.26
  5. Step 5: Solve for x
    x = 21,822,843.26/7,212.66
  6. Step 6: Final answer
    x = 3,025.63

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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.