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Finding the Fourth Proportional to 6,563.45, 9,057.78 and 3,579.45

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Solution

The fourth proportional to 6,563.45, 9,057.78 and 3,579.45 is: 4,939.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,563.45 : 9,057.78 = 3,579.45 : x
  2. Step 2: Convert to fraction form
    6,563.45/9,057.78 = 3,579.45/x
  3. Step 3: Cross multiply
    6,563.45x = 9,057.78 × 3,579.45
  4. Step 4: Simplify right side
    6,563.45x = 32,421,816.38
  5. Step 5: Solve for x
    x = 32,421,816.38/6,563.45
  6. Step 6: Final answer
    x = 4,939.75

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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.