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Finding the Fourth Proportional to 2,709.56, 3,739.30 and 1,530.81

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Solution

The fourth proportional to 2,709.56, 3,739.30 and 1,530.81 is: 2,112.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,709.56 : 3,739.30 = 1,530.81 : x
  2. Step 2: Convert to fraction form
    2,709.56/3,739.30 = 1,530.81/x
  3. Step 3: Cross multiply
    2,709.56x = 3,739.30 × 1,530.81
  4. Step 4: Simplify right side
    2,709.56x = 5,724,154.01
  5. Step 5: Solve for x
    x = 5,724,154.01/2,709.56
  6. Step 6: Final answer
    x = 2,112.58

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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.