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Finding the Fourth Proportional to 1,493.52, 2,059.74 and 969

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Solution

The fourth proportional to 1,493.52, 2,059.74 and 969 is: 1,336.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,493.52 : 2,059.74 = 969 : x
  2. Step 2: Convert to fraction form
    1,493.52/2,059.74 = 969/x
  3. Step 3: Cross multiply
    1,493.52x = 2,059.74 × 969
  4. Step 4: Simplify right side
    1,493.52x = 1,995,888.06
  5. Step 5: Solve for x
    x = 1,995,888.06/1,493.52
  6. Step 6: Final answer
    x = 1,336.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.