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Finding the Fourth Proportional to 1,033.84, 1,551.48 and 943.12

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Solution

The fourth proportional to 1,033.84, 1,551.48 and 943.12 is: 1,415.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,033.84 : 1,551.48 = 943.12 : x
  2. Step 2: Convert to fraction form
    1,033.84/1,551.48 = 943.12/x
  3. Step 3: Cross multiply
    1,033.84x = 1,551.48 × 943.12
  4. Step 4: Simplify right side
    1,033.84x = 1,463,231.82
  5. Step 5: Solve for x
    x = 1,463,231.82/1,033.84
  6. Step 6: Final answer
    x = 1,415.34

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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.