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Finding the Fourth Proportional to 6,279.62, 8,661.07 and 4,600.42

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Solution

The fourth proportional to 6,279.62, 8,661.07 and 4,600.42 is: 6,345.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,279.62 : 8,661.07 = 4,600.42 : x
  2. Step 2: Convert to fraction form
    6,279.62/8,661.07 = 4,600.42/x
  3. Step 3: Cross multiply
    6,279.62x = 8,661.07 × 4,600.42
  4. Step 4: Simplify right side
    6,279.62x = 39,844,559.65
  5. Step 5: Solve for x
    x = 39,844,559.65/6,279.62
  6. Step 6: Final answer
    x = 6,345.06

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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.