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Finding the Fourth Proportional to 9,216.97, 13,825.49 and 2,805.62

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Solution

The fourth proportional to 9,216.97, 13,825.49 and 2,805.62 is: 4,208.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,216.97 : 13,825.49 = 2,805.62 : x
  2. Step 2: Convert to fraction form
    9,216.97/13,825.49 = 2,805.62/x
  3. Step 3: Cross multiply
    9,216.97x = 13,825.49 × 2,805.62
  4. Step 4: Simplify right side
    9,216.97x = 38,789,071.25
  5. Step 5: Solve for x
    x = 38,789,071.25/9,216.97
  6. Step 6: Final answer
    x = 4,208.44

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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.