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Finding the Fourth Proportional to 7,661.20, 10,579.20 and 4,833.62

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Solution

The fourth proportional to 7,661.20, 10,579.20 and 4,833.62 is: 6,674.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,661.20 : 10,579.20 = 4,833.62 : x
  2. Step 2: Convert to fraction form
    7,661.20/10,579.20 = 4,833.62/x
  3. Step 3: Cross multiply
    7,661.20x = 10,579.20 × 4,833.62
  4. Step 4: Simplify right side
    7,661.20x = 51,135,832.70
  5. Step 5: Solve for x
    x = 51,135,832.70/7,661.20
  6. Step 6: Final answer
    x = 6,674.65

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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.