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Finding the Fourth Proportional to 1,552.36, 2,142 and 923.26

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Solution

The fourth proportional to 1,552.36, 2,142 and 923.26 is: 1,273.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,552.36 : 2,142 = 923.26 : x
  2. Step 2: Convert to fraction form
    1,552.36/2,142 = 923.26/x
  3. Step 3: Cross multiply
    1,552.36x = 2,142 × 923.26
  4. Step 4: Simplify right side
    1,552.36x = 1,977,622.92
  5. Step 5: Solve for x
    x = 1,977,622.92/1,552.36
  6. Step 6: Final answer
    x = 1,273.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.