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Finding the Fourth Proportional to 8,839.99, 12,198.84 and 4,860.86

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Solution

The fourth proportional to 8,839.99, 12,198.84 and 4,860.86 is: 6,707.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,839.99 : 12,198.84 = 4,860.86 : x
  2. Step 2: Convert to fraction form
    8,839.99/12,198.84 = 4,860.86/x
  3. Step 3: Cross multiply
    8,839.99x = 12,198.84 × 4,860.86
  4. Step 4: Simplify right side
    8,839.99x = 59,296,853.40
  5. Step 5: Solve for x
    x = 59,296,853.40/8,839.99
  6. Step 6: Final answer
    x = 6,707.80

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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.