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Finding the Fourth Proportional to 6,408.36, 8,847.55 and 4,913.41

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Solution

The fourth proportional to 6,408.36, 8,847.55 and 4,913.41 is: 6,783.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,408.36 : 8,847.55 = 4,913.41 : x
  2. Step 2: Convert to fraction form
    6,408.36/8,847.55 = 4,913.41/x
  3. Step 3: Cross multiply
    6,408.36x = 8,847.55 × 4,913.41
  4. Step 4: Simplify right side
    6,408.36x = 43,471,606.24
  5. Step 5: Solve for x
    x = 43,471,606.24/6,408.36
  6. Step 6: Final answer
    x = 6,783.57

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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.