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Finding the Fourth Proportional to 7,268.61, 10,902.90 and 5,081.61

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Solution

The fourth proportional to 7,268.61, 10,902.90 and 5,081.61 is: 7,622.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,268.61 : 10,902.90 = 5,081.61 : x
  2. Step 2: Convert to fraction form
    7,268.61/10,902.90 = 5,081.61/x
  3. Step 3: Cross multiply
    7,268.61x = 10,902.90 × 5,081.61
  4. Step 4: Simplify right side
    7,268.61x = 55,404,285.67
  5. Step 5: Solve for x
    x = 55,404,285.67/7,268.61
  6. Step 6: Final answer
    x = 7,622.40

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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.