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Finding the Fourth Proportional to 2,281.10, 3,421.89 and 741.74

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Solution

The fourth proportional to 2,281.10, 3,421.89 and 741.74 is: 1,112.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.10 : 3,421.89 = 741.74 : x
  2. Step 2: Convert to fraction form
    2,281.10/3,421.89 = 741.74/x
  3. Step 3: Cross multiply
    2,281.10x = 3,421.89 × 741.74
  4. Step 4: Simplify right side
    2,281.10x = 2,538,152.69
  5. Step 5: Solve for x
    x = 2,538,152.69/2,281.10
  6. Step 6: Final answer
    x = 1,112.69

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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.