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Finding the Fourth Proportional to 4,874.20, 7,313.10 and 4,694.20

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Solution

The fourth proportional to 4,874.20, 7,313.10 and 4,694.20 is: 7,043.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,874.20 : 7,313.10 = 4,694.20 : x
  2. Step 2: Convert to fraction form
    4,874.20/7,313.10 = 4,694.20/x
  3. Step 3: Cross multiply
    4,874.20x = 7,313.10 × 4,694.20
  4. Step 4: Simplify right side
    4,874.20x = 34,329,154.02
  5. Step 5: Solve for x
    x = 34,329,154.02/4,874.20
  6. Step 6: Final answer
    x = 7,043.03

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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.