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Finding the Fourth Proportional to 1,296.45, 1,945.22 and 1,036.17

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Solution

The fourth proportional to 1,296.45, 1,945.22 and 1,036.17 is: 1,554.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296.45 : 1,945.22 = 1,036.17 : x
  2. Step 2: Convert to fraction form
    1,296.45/1,945.22 = 1,036.17/x
  3. Step 3: Cross multiply
    1,296.45x = 1,945.22 × 1,036.17
  4. Step 4: Simplify right side
    1,296.45x = 2,015,573.43
  5. Step 5: Solve for x
    x = 2,015,573.43/1,296.45
  6. Step 6: Final answer
    x = 1,554.69

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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.