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Finding the Fourth Proportional to 7,284.25, 10,928.13 and 2,090.08

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Solution

The fourth proportional to 7,284.25, 10,928.13 and 2,090.08 is: 3,135.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,284.25 : 10,928.13 = 2,090.08 : x
  2. Step 2: Convert to fraction form
    7,284.25/10,928.13 = 2,090.08/x
  3. Step 3: Cross multiply
    7,284.25x = 10,928.13 × 2,090.08
  4. Step 4: Simplify right side
    7,284.25x = 22,840,665.95
  5. Step 5: Solve for x
    x = 22,840,665.95/7,284.25
  6. Step 6: Final answer
    x = 3,135.62

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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.