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Finding the Fourth Proportional to 3,466.72, 4,783.85 and 1,974.79

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Solution

The fourth proportional to 3,466.72, 4,783.85 and 1,974.79 is: 2,725.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,466.72 : 4,783.85 = 1,974.79 : x
  2. Step 2: Convert to fraction form
    3,466.72/4,783.85 = 1,974.79/x
  3. Step 3: Cross multiply
    3,466.72x = 4,783.85 × 1,974.79
  4. Step 4: Simplify right side
    3,466.72x = 9,447,089.27
  5. Step 5: Solve for x
    x = 9,447,089.27/3,466.72
  6. Step 6: Final answer
    x = 2,725.08

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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.