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Finding the Fourth Proportional to 6,641.36, 9,969.60 and 3,358.16

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Solution

The fourth proportional to 6,641.36, 9,969.60 and 3,358.16 is: 5,041.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,641.36 : 9,969.60 = 3,358.16 : x
  2. Step 2: Convert to fraction form
    6,641.36/9,969.60 = 3,358.16/x
  3. Step 3: Cross multiply
    6,641.36x = 9,969.60 × 3,358.16
  4. Step 4: Simplify right side
    6,641.36x = 33,479,511.94
  5. Step 5: Solve for x
    x = 33,479,511.94/6,641.36
  6. Step 6: Final answer
    x = 5,041.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.