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Finding the Fourth Proportional to 9,272.73, 13,892.89 and 7,722.71

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Solution

The fourth proportional to 9,272.73, 13,892.89 and 7,722.71 is: 11,570.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,272.73 : 13,892.89 = 7,722.71 : x
  2. Step 2: Convert to fraction form
    9,272.73/13,892.89 = 7,722.71/x
  3. Step 3: Cross multiply
    9,272.73x = 13,892.89 × 7,722.71
  4. Step 4: Simplify right side
    9,272.73x = 107,290,760.53
  5. Step 5: Solve for x
    x = 107,290,760.53/9,272.73
  6. Step 6: Final answer
    x = 11,570.57

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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.