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Finding the Fourth Proportional to 6,940.99, 9,579.06 and 4,579.03

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Solution

The fourth proportional to 6,940.99, 9,579.06 and 4,579.03 is: 6,319.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,940.99 : 9,579.06 = 4,579.03 : x
  2. Step 2: Convert to fraction form
    6,940.99/9,579.06 = 4,579.03/x
  3. Step 3: Cross multiply
    6,940.99x = 9,579.06 × 4,579.03
  4. Step 4: Simplify right side
    6,940.99x = 43,862,815.09
  5. Step 5: Solve for x
    x = 43,862,815.09/6,940.99
  6. Step 6: Final answer
    x = 6,319.39

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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.