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Finding the Fourth Proportional to 4,902.80, 7,354.20 and 3,347.60

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Solution

The fourth proportional to 4,902.80, 7,354.20 and 3,347.60 is: 5,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,902.80 : 7,354.20 = 3,347.60 : x
  2. Step 2: Convert to fraction form
    4,902.80/7,354.20 = 3,347.60/x
  3. Step 3: Cross multiply
    4,902.80x = 7,354.20 × 3,347.60
  4. Step 4: Simplify right side
    4,902.80x = 24,618,919.92
  5. Step 5: Solve for x
    x = 24,618,919.92/4,902.80
  6. Step 6: Final answer
    x = 5,021.40

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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.