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Finding the Fourth Proportional to 4,736.88, 7,104.24 and 1,274.40

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Solution

The fourth proportional to 4,736.88, 7,104.24 and 1,274.40 is: 1,911.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,736.88 : 7,104.24 = 1,274.40 : x
  2. Step 2: Convert to fraction form
    4,736.88/7,104.24 = 1,274.40/x
  3. Step 3: Cross multiply
    4,736.88x = 7,104.24 × 1,274.40
  4. Step 4: Simplify right side
    4,736.88x = 9,053,643.46
  5. Step 5: Solve for x
    x = 9,053,643.46/4,736.88
  6. Step 6: Final answer
    x = 1,911.31

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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.