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Finding the Fourth Proportional to 6,579.33, 9,870.21 and 4,239.24

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Solution

The fourth proportional to 6,579.33, 9,870.21 and 4,239.24 is: 6,359.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,579.33 : 9,870.21 = 4,239.24 : x
  2. Step 2: Convert to fraction form
    6,579.33/9,870.21 = 4,239.24/x
  3. Step 3: Cross multiply
    6,579.33x = 9,870.21 × 4,239.24
  4. Step 4: Simplify right side
    6,579.33x = 41,842,189.04
  5. Step 5: Solve for x
    x = 41,842,189.04/6,579.33
  6. Step 6: Final answer
    x = 6,359.64

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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.