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Finding the Fourth Proportional to 12,348.89, 18,523.92 and 4,028.89

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Solution

The fourth proportional to 12,348.89, 18,523.92 and 4,028.89 is: 6,043.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,348.89 : 18,523.92 = 4,028.89 : x
  2. Step 2: Convert to fraction form
    12,348.89/18,523.92 = 4,028.89/x
  3. Step 3: Cross multiply
    12,348.89x = 18,523.92 × 4,028.89
  4. Step 4: Simplify right side
    12,348.89x = 74,630,836.05
  5. Step 5: Solve for x
    x = 74,630,836.05/12,348.89
  6. Step 6: Final answer
    x = 6,043.53

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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.