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Finding the Fourth Proportional to 2,311.56, 3,182.56 and 1,870.92

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Solution

The fourth proportional to 2,311.56, 3,182.56 and 1,870.92 is: 2,575.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.56 : 3,182.56 = 1,870.92 : x
  2. Step 2: Convert to fraction form
    2,311.56/3,182.56 = 1,870.92/x
  3. Step 3: Cross multiply
    2,311.56x = 3,182.56 × 1,870.92
  4. Step 4: Simplify right side
    2,311.56x = 5,954,315.16
  5. Step 5: Solve for x
    x = 5,954,315.16/2,311.56
  6. Step 6: Final answer
    x = 2,575.89

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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.