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Finding the Fourth Proportional to 12,262.25, 18,393.65 and 3,028.25

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Solution

The fourth proportional to 12,262.25, 18,393.65 and 3,028.25 is: 4,542.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,262.25 : 18,393.65 = 3,028.25 : x
  2. Step 2: Convert to fraction form
    12,262.25/18,393.65 = 3,028.25/x
  3. Step 3: Cross multiply
    12,262.25x = 18,393.65 × 3,028.25
  4. Step 4: Simplify right side
    12,262.25x = 55,700,570.61
  5. Step 5: Solve for x
    x = 55,700,570.61/12,262.25
  6. Step 6: Final answer
    x = 4,542.44

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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.