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Finding the Fourth Proportional to 2,654.22, 3,973.20 and 1,677.36

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Solution

The fourth proportional to 2,654.22, 3,973.20 and 1,677.36 is: 2,510.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,654.22 : 3,973.20 = 1,677.36 : x
  2. Step 2: Convert to fraction form
    2,654.22/3,973.20 = 1,677.36/x
  3. Step 3: Cross multiply
    2,654.22x = 3,973.20 × 1,677.36
  4. Step 4: Simplify right side
    2,654.22x = 6,664,486.75
  5. Step 5: Solve for x
    x = 6,664,486.75/2,654.22
  6. Step 6: Final answer
    x = 2,510.90

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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.