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Finding the Fourth Proportional to 8,481.60, 11,708.62 and 5,653.69

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Solution

The fourth proportional to 8,481.60, 11,708.62 and 5,653.69 is: 7,804.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,481.60 : 11,708.62 = 5,653.69 : x
  2. Step 2: Convert to fraction form
    8,481.60/11,708.62 = 5,653.69/x
  3. Step 3: Cross multiply
    8,481.60x = 11,708.62 × 5,653.69
  4. Step 4: Simplify right side
    8,481.60x = 66,196,864.40
  5. Step 5: Solve for x
    x = 66,196,864.40/8,481.60
  6. Step 6: Final answer
    x = 7,804.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.