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Finding the Fourth Proportional to 8,839.62, 12,198.62 and 4,860.63

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Solution

The fourth proportional to 8,839.62, 12,198.62 and 4,860.63 is: 6,707.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,839.62 : 12,198.62 = 4,860.63 : x
  2. Step 2: Convert to fraction form
    8,839.62/12,198.62 = 4,860.63/x
  3. Step 3: Cross multiply
    8,839.62x = 12,198.62 × 4,860.63
  4. Step 4: Simplify right side
    8,839.62x = 59,292,954.03
  5. Step 5: Solve for x
    x = 59,292,954.03/8,839.62
  6. Step 6: Final answer
    x = 6,707.64

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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.