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Finding the Fourth Proportional to 4,979.24, 7,456.92 and 2,894.84

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Solution

The fourth proportional to 4,979.24, 7,456.92 and 2,894.84 is: 4,335.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.24 : 7,456.92 = 2,894.84 : x
  2. Step 2: Convert to fraction form
    4,979.24/7,456.92 = 2,894.84/x
  3. Step 3: Cross multiply
    4,979.24x = 7,456.92 × 2,894.84
  4. Step 4: Simplify right side
    4,979.24x = 21,586,590.29
  5. Step 5: Solve for x
    x = 21,586,590.29/4,979.24
  6. Step 6: Final answer
    x = 4,335.32

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1.5x scale

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.