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Finding the Fourth Proportional to 4,922.74, 6,794.04 and 3,154.78

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Solution

The fourth proportional to 4,922.74, 6,794.04 and 3,154.78 is: 4,354.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,922.74 : 6,794.04 = 3,154.78 : x
  2. Step 2: Convert to fraction form
    4,922.74/6,794.04 = 3,154.78/x
  3. Step 3: Cross multiply
    4,922.74x = 6,794.04 × 3,154.78
  4. Step 4: Simplify right side
    4,922.74x = 21,433,701.51
  5. Step 5: Solve for x
    x = 21,433,701.51/4,922.74
  6. Step 6: Final answer
    x = 4,354.02

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1.5x scale

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.