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Finding the Fourth Proportional to 1,161.67, 1,751.19 and 1,063.16

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Solution

The fourth proportional to 1,161.67, 1,751.19 and 1,063.16 is: 1,602.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161.67 : 1,751.19 = 1,063.16 : x
  2. Step 2: Convert to fraction form
    1,161.67/1,751.19 = 1,063.16/x
  3. Step 3: Cross multiply
    1,161.67x = 1,751.19 × 1,063.16
  4. Step 4: Simplify right side
    1,161.67x = 1,861,795.16
  5. Step 5: Solve for x
    x = 1,861,795.16/1,161.67
  6. Step 6: Final answer
    x = 1,602.69

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.