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Finding the Fourth Proportional to 5,653.32, 8,481.19 and 1,905.47

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Solution

The fourth proportional to 5,653.32, 8,481.19 and 1,905.47 is: 2,858.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,653.32 : 8,481.19 = 1,905.47 : x
  2. Step 2: Convert to fraction form
    5,653.32/8,481.19 = 1,905.47/x
  3. Step 3: Cross multiply
    5,653.32x = 8,481.19 × 1,905.47
  4. Step 4: Simplify right side
    5,653.32x = 16,160,644.89
  5. Step 5: Solve for x
    x = 16,160,644.89/5,653.32
  6. Step 6: Final answer
    x = 2,858.61

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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.