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Finding the Fourth Proportional to 1,675.17, 2,511.92 and 982.01

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Solution

The fourth proportional to 1,675.17, 2,511.92 and 982.01 is: 1,472.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675.17 : 2,511.92 = 982.01 : x
  2. Step 2: Convert to fraction form
    1,675.17/2,511.92 = 982.01/x
  3. Step 3: Cross multiply
    1,675.17x = 2,511.92 × 982.01
  4. Step 4: Simplify right side
    1,675.17x = 2,466,713.09
  5. Step 5: Solve for x
    x = 2,466,713.09/1,675.17
  6. Step 6: Final answer
    x = 1,472.52

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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.