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Finding the Fourth Proportional to 1,782.93, 2,460.52 and 996.98

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Solution

The fourth proportional to 1,782.93, 2,460.52 and 996.98 is: 1,375.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,782.93 : 2,460.52 = 996.98 : x
  2. Step 2: Convert to fraction form
    1,782.93/2,460.52 = 996.98/x
  3. Step 3: Cross multiply
    1,782.93x = 2,460.52 × 996.98
  4. Step 4: Simplify right side
    1,782.93x = 2,453,071.94
  5. Step 5: Solve for x
    x = 2,453,071.94/1,782.93
  6. Step 6: Final answer
    x = 1,375.87

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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.