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Finding the Fourth Proportional to 12,283.80, 18,424.84 and 3,049.80

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Solution

The fourth proportional to 12,283.80, 18,424.84 and 3,049.80 is: 4,574.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,283.80 : 18,424.84 = 3,049.80 : x
  2. Step 2: Convert to fraction form
    12,283.80/18,424.84 = 3,049.80/x
  3. Step 3: Cross multiply
    12,283.80x = 18,424.84 × 3,049.80
  4. Step 4: Simplify right side
    12,283.80x = 56,192,077.03
  5. Step 5: Solve for x
    x = 56,192,077.03/12,283.80
  6. Step 6: Final answer
    x = 4,574.49

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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.