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Finding the Fourth Proportional to 6,646.30, 9,173.22 and 3,815.59

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Solution

The fourth proportional to 6,646.30, 9,173.22 and 3,815.59 is: 5,266.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,646.30 : 9,173.22 = 3,815.59 : x
  2. Step 2: Convert to fraction form
    6,646.30/9,173.22 = 3,815.59/x
  3. Step 3: Cross multiply
    6,646.30x = 9,173.22 × 3,815.59
  4. Step 4: Simplify right side
    6,646.30x = 35,001,181.56
  5. Step 5: Solve for x
    x = 35,001,181.56/6,646.30
  6. Step 6: Final answer
    x = 5,266.27

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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.