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Finding the Fourth Proportional to 6,222.99, 8,583.24 and 4,335.21

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Solution

The fourth proportional to 6,222.99, 8,583.24 and 4,335.21 is: 5,979.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,222.99 : 8,583.24 = 4,335.21 : x
  2. Step 2: Convert to fraction form
    6,222.99/8,583.24 = 4,335.21/x
  3. Step 3: Cross multiply
    6,222.99x = 8,583.24 × 4,335.21
  4. Step 4: Simplify right side
    6,222.99x = 37,210,147.88
  5. Step 5: Solve for x
    x = 37,210,147.88/6,222.99
  6. Step 6: Final answer
    x = 5,979.46

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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.