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Finding the Fourth Proportional to 9,653.78, 14,481.48 and 3,080.90

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Solution

The fourth proportional to 9,653.78, 14,481.48 and 3,080.90 is: 4,621.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,653.78 : 14,481.48 = 3,080.90 : x
  2. Step 2: Convert to fraction form
    9,653.78/14,481.48 = 3,080.90/x
  3. Step 3: Cross multiply
    9,653.78x = 14,481.48 × 3,080.90
  4. Step 4: Simplify right side
    9,653.78x = 44,615,991.73
  5. Step 5: Solve for x
    x = 44,615,991.73/9,653.78
  6. Step 6: Final answer
    x = 4,621.61

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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.