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Finding the Fourth Proportional to 1,163.97, 1,742.51 and 893.23

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Solution

The fourth proportional to 1,163.97, 1,742.51 and 893.23 is: 1,337.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163.97 : 1,742.51 = 893.23 : x
  2. Step 2: Convert to fraction form
    1,163.97/1,742.51 = 893.23/x
  3. Step 3: Cross multiply
    1,163.97x = 1,742.51 × 893.23
  4. Step 4: Simplify right side
    1,163.97x = 1,556,460.08
  5. Step 5: Solve for x
    x = 1,556,460.08/1,163.97
  6. Step 6: Final answer
    x = 1,337.20

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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.