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Finding the Fourth Proportional to 6,720.37, 9,274.10 and 3,736.19

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Solution

The fourth proportional to 6,720.37, 9,274.10 and 3,736.19 is: 5,155.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720.37 : 9,274.10 = 3,736.19 : x
  2. Step 2: Convert to fraction form
    6,720.37/9,274.10 = 3,736.19/x
  3. Step 3: Cross multiply
    6,720.37x = 9,274.10 × 3,736.19
  4. Step 4: Simplify right side
    6,720.37x = 34,649,804.18
  5. Step 5: Solve for x
    x = 34,649,804.18/6,720.37
  6. Step 6: Final answer
    x = 5,155.94

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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.