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Finding the Fourth Proportional to 1,817.73, 2,724.10 and 1,038.11

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Solution

The fourth proportional to 1,817.73, 2,724.10 and 1,038.11 is: 1,555.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.73 : 2,724.10 = 1,038.11 : x
  2. Step 2: Convert to fraction form
    1,817.73/2,724.10 = 1,038.11/x
  3. Step 3: Cross multiply
    1,817.73x = 2,724.10 × 1,038.11
  4. Step 4: Simplify right side
    1,817.73x = 2,827,899.24
  5. Step 5: Solve for x
    x = 2,827,899.24/1,817.73
  6. Step 6: Final answer
    x = 1,555.73

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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.