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Finding the Fourth Proportional to 5,181.44, 7,157.76 and 4,922.24

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Solution

The fourth proportional to 5,181.44, 7,157.76 and 4,922.24 is: 6,799.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.44 : 7,157.76 = 4,922.24 : x
  2. Step 2: Convert to fraction form
    5,181.44/7,157.76 = 4,922.24/x
  3. Step 3: Cross multiply
    5,181.44x = 7,157.76 × 4,922.24
  4. Step 4: Simplify right side
    5,181.44x = 35,232,212.58
  5. Step 5: Solve for x
    x = 35,232,212.58/5,181.44
  6. Step 6: Final answer
    x = 6,799.70

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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.