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Finding the Fourth Proportional to 7,777.66, 10,738.70 and 4,794.44

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Solution

The fourth proportional to 7,777.66, 10,738.70 and 4,794.44 is: 6,619.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777.66 : 10,738.70 = 4,794.44 : x
  2. Step 2: Convert to fraction form
    7,777.66/10,738.70 = 4,794.44/x
  3. Step 3: Cross multiply
    7,777.66x = 10,738.70 × 4,794.44
  4. Step 4: Simplify right side
    7,777.66x = 51,486,052.83
  5. Step 5: Solve for x
    x = 51,486,052.83/7,777.66
  6. Step 6: Final answer
    x = 6,619.74

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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.