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Finding the Fourth Proportional to 5,607.44, 7,738.16 and 3,089.60

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Solution

The fourth proportional to 5,607.44, 7,738.16 and 3,089.60 is: 4,263.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,607.44 : 7,738.16 = 3,089.60 : x
  2. Step 2: Convert to fraction form
    5,607.44/7,738.16 = 3,089.60/x
  3. Step 3: Cross multiply
    5,607.44x = 7,738.16 × 3,089.60
  4. Step 4: Simplify right side
    5,607.44x = 23,907,819.14
  5. Step 5: Solve for x
    x = 23,907,819.14/5,607.44
  6. Step 6: Final answer
    x = 4,263.59

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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.