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Finding the Fourth Proportional to 2,239.75, 3,359.63 and 700.75

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Solution

The fourth proportional to 2,239.75, 3,359.63 and 700.75 is: 1,051.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.75 : 3,359.63 = 700.75 : x
  2. Step 2: Convert to fraction form
    2,239.75/3,359.63 = 700.75/x
  3. Step 3: Cross multiply
    2,239.75x = 3,359.63 × 700.75
  4. Step 4: Simplify right side
    2,239.75x = 2,354,260.72
  5. Step 5: Solve for x
    x = 2,354,260.72/2,239.75
  6. Step 6: Final answer
    x = 1,051.13

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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.