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Finding the Fourth Proportional to 8,481.79, 11,708.88 and 5,653.88

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Solution

The fourth proportional to 8,481.79, 11,708.88 and 5,653.88 is: 7,805.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,481.79 : 11,708.88 = 5,653.88 : x
  2. Step 2: Convert to fraction form
    8,481.79/11,708.88 = 5,653.88/x
  3. Step 3: Cross multiply
    8,481.79x = 11,708.88 × 5,653.88
  4. Step 4: Simplify right side
    8,481.79x = 66,200,522.71
  5. Step 5: Solve for x
    x = 66,200,522.71/8,481.79
  6. Step 6: Final answer
    x = 7,805.02

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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.