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Finding the Fourth Proportional to 5,607.55, 7,738.43 and 3,369.46

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Solution

The fourth proportional to 5,607.55, 7,738.43 and 3,369.46 is: 4,649.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,607.55 : 7,738.43 = 3,369.46 : x
  2. Step 2: Convert to fraction form
    5,607.55/7,738.43 = 3,369.46/x
  3. Step 3: Cross multiply
    5,607.55x = 7,738.43 × 3,369.46
  4. Step 4: Simplify right side
    5,607.55x = 26,074,336.13
  5. Step 5: Solve for x
    x = 26,074,336.13/5,607.55
  6. Step 6: Final answer
    x = 4,649.86

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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.