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Finding the Fourth Proportional to 8,839.71, 12,198.95 and 4,860.99

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Solution

The fourth proportional to 8,839.71, 12,198.95 and 4,860.99 is: 6,708.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,839.71 : 12,198.95 = 4,860.99 : x
  2. Step 2: Convert to fraction form
    8,839.71/12,198.95 = 4,860.99/x
  3. Step 3: Cross multiply
    8,839.71x = 12,198.95 × 4,860.99
  4. Step 4: Simplify right side
    8,839.71x = 59,298,973.96
  5. Step 5: Solve for x
    x = 59,298,973.96/8,839.71
  6. Step 6: Final answer
    x = 6,708.25

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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.