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Finding the Fourth Proportional to 5,366.48, 7,408.92 and 3,378.74

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Solution

The fourth proportional to 5,366.48, 7,408.92 and 3,378.74 is: 4,664.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,366.48 : 7,408.92 = 3,378.74 : x
  2. Step 2: Convert to fraction form
    5,366.48/7,408.92 = 3,378.74/x
  3. Step 3: Cross multiply
    5,366.48x = 7,408.92 × 3,378.74
  4. Step 4: Simplify right side
    5,366.48x = 25,032,814.36
  5. Step 5: Solve for x
    x = 25,032,814.36/5,366.48
  6. Step 6: Final answer
    x = 4,664.66

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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.