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Finding the Fourth Proportional to 1,828.87, 2,742.90 and 733.48

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Solution

The fourth proportional to 1,828.87, 2,742.90 and 733.48 is: 1,100.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,828.87 : 2,742.90 = 733.48 : x
  2. Step 2: Convert to fraction form
    1,828.87/2,742.90 = 733.48/x
  3. Step 3: Cross multiply
    1,828.87x = 2,742.90 × 733.48
  4. Step 4: Simplify right side
    1,828.87x = 2,011,862.29
  5. Step 5: Solve for x
    x = 2,011,862.29/1,828.87
  6. Step 6: Final answer
    x = 1,100.06

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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.