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Finding the Fourth Proportional to 7,200.66, 10,798.22 and 2,817.12

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Solution

The fourth proportional to 7,200.66, 10,798.22 and 2,817.12 is: 4,224.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,200.66 : 10,798.22 = 2,817.12 : x
  2. Step 2: Convert to fraction form
    7,200.66/10,798.22 = 2,817.12/x
  3. Step 3: Cross multiply
    7,200.66x = 10,798.22 × 2,817.12
  4. Step 4: Simplify right side
    7,200.66x = 30,419,881.53
  5. Step 5: Solve for x
    x = 30,419,881.53/7,200.66
  6. Step 6: Final answer
    x = 4,224.60

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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.