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Finding the Fourth Proportional to 7,208.79, 10,790.09 and 5,227.53

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Solution

The fourth proportional to 7,208.79, 10,790.09 and 5,227.53 is: 7,824.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,208.79 : 10,790.09 = 5,227.53 : x
  2. Step 2: Convert to fraction form
    7,208.79/10,790.09 = 5,227.53/x
  3. Step 3: Cross multiply
    7,208.79x = 10,790.09 × 5,227.53
  4. Step 4: Simplify right side
    7,208.79x = 56,405,519.18
  5. Step 5: Solve for x
    x = 56,405,519.18/7,208.79
  6. Step 6: Final answer
    x = 7,824.55

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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.