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Finding the Fourth Proportional to 2,760.60, 4,140.90 and 2,705.93

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Solution

The fourth proportional to 2,760.60, 4,140.90 and 2,705.93 is: 4,058.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.60 : 4,140.90 = 2,705.93 : x
  2. Step 2: Convert to fraction form
    2,760.60/4,140.90 = 2,705.93/x
  3. Step 3: Cross multiply
    2,760.60x = 4,140.90 × 2,705.93
  4. Step 4: Simplify right side
    2,760.60x = 11,204,985.54
  5. Step 5: Solve for x
    x = 11,204,985.54/2,760.60
  6. Step 6: Final answer
    x = 4,058.90

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