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Finding the Fourth Proportional to 4,522.80, 6,784.20 and 2,794.80

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Solution

The fourth proportional to 4,522.80, 6,784.20 and 2,794.80 is: 4,192.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,522.80 : 6,784.20 = 2,794.80 : x
  2. Step 2: Convert to fraction form
    4,522.80/6,784.20 = 2,794.80/x
  3. Step 3: Cross multiply
    4,522.80x = 6,784.20 × 2,794.80
  4. Step 4: Simplify right side
    4,522.80x = 18,960,482.16
  5. Step 5: Solve for x
    x = 18,960,482.16/4,522.80
  6. Step 6: Final answer
    x = 4,192.20

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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.