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Finding the Fourth Proportional to 6,646.54, 9,172.22 and 3,662.38

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Solution

The fourth proportional to 6,646.54, 9,172.22 and 3,662.38 is: 5,054.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,646.54 : 9,172.22 = 3,662.38 : x
  2. Step 2: Convert to fraction form
    6,646.54/9,172.22 = 3,662.38/x
  3. Step 3: Cross multiply
    6,646.54x = 9,172.22 × 3,662.38
  4. Step 4: Simplify right side
    6,646.54x = 33,592,108.28
  5. Step 5: Solve for x
    x = 33,592,108.28/6,646.54
  6. Step 6: Final answer
    x = 5,054.07

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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.