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Finding the Fourth Proportional to 2,654.21, 3,662.64 and 1,475.28

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Solution

The fourth proportional to 2,654.21, 3,662.64 and 1,475.28 is: 2,035.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,654.21 : 3,662.64 = 1,475.28 : x
  2. Step 2: Convert to fraction form
    2,654.21/3,662.64 = 1,475.28/x
  3. Step 3: Cross multiply
    2,654.21x = 3,662.64 × 1,475.28
  4. Step 4: Simplify right side
    2,654.21x = 5,403,412.16
  5. Step 5: Solve for x
    x = 5,403,412.16/2,654.21
  6. Step 6: Final answer
    x = 2,035.79

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.