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Finding the Fourth Proportional to 4,979.19, 7,468.78 and 1,516.44

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Solution

The fourth proportional to 4,979.19, 7,468.78 and 1,516.44 is: 2,274.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.19 : 7,468.78 = 1,516.44 : x
  2. Step 2: Convert to fraction form
    4,979.19/7,468.78 = 1,516.44/x
  3. Step 3: Cross multiply
    4,979.19x = 7,468.78 × 1,516.44
  4. Step 4: Simplify right side
    4,979.19x = 11,325,956.74
  5. Step 5: Solve for x
    x = 11,325,956.74/4,979.19
  6. Step 6: Final answer
    x = 2,274.66

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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.