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Finding the Fourth Proportional to 4,800.94, 7,201.85 and 1,338.19

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Solution

The fourth proportional to 4,800.94, 7,201.85 and 1,338.19 is: 2,007.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,800.94 : 7,201.85 = 1,338.19 : x
  2. Step 2: Convert to fraction form
    4,800.94/7,201.85 = 1,338.19/x
  3. Step 3: Cross multiply
    4,800.94x = 7,201.85 × 1,338.19
  4. Step 4: Simplify right side
    4,800.94x = 9,637,418.96
  5. Step 5: Solve for x
    x = 9,637,418.96/4,800.94
  6. Step 6: Final answer
    x = 2,007.40

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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.