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Finding the Fourth Proportional to 6,683.36, 9,224.16 and 3,890.48

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Solution

The fourth proportional to 6,683.36, 9,224.16 and 3,890.48 is: 5,369.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,683.36 : 9,224.16 = 3,890.48 : x
  2. Step 2: Convert to fraction form
    6,683.36/9,224.16 = 3,890.48/x
  3. Step 3: Cross multiply
    6,683.36x = 9,224.16 × 3,890.48
  4. Step 4: Simplify right side
    6,683.36x = 35,886,410.00
  5. Step 5: Solve for x
    x = 35,886,410.00/6,683.36
  6. Step 6: Final answer
    x = 5,369.52

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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.