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Finding the Fourth Proportional to 942.24, 1,291.24 and 850.08

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Solution

The fourth proportional to 942.24, 1,291.24 and 850.08 is: 1,164.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    942.24 : 1,291.24 = 850.08 : x
  2. Step 2: Convert to fraction form
    942.24/1,291.24 = 850.08/x
  3. Step 3: Cross multiply
    942.24x = 1,291.24 × 850.08
  4. Step 4: Simplify right side
    942.24x = 1,097,657.30
  5. Step 5: Solve for x
    x = 1,097,657.30/942.24
  6. Step 6: Final answer
    x = 1,164.94

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.