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Finding the Fourth Proportional to 2,884.48, 4,326.88 and 937.28

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Solution

The fourth proportional to 2,884.48, 4,326.88 and 937.28 is: 1,405.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,884.48 : 4,326.88 = 937.28 : x
  2. Step 2: Convert to fraction form
    2,884.48/4,326.88 = 937.28/x
  3. Step 3: Cross multiply
    2,884.48x = 4,326.88 × 937.28
  4. Step 4: Simplify right side
    2,884.48x = 4,055,498.09
  5. Step 5: Solve for x
    x = 4,055,498.09/2,884.48
  6. Step 6: Final answer
    x = 1,405.97

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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.