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Finding the Fourth Proportional to 45,964.73, 68,951.08 and 12,684.80

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Solution

The fourth proportional to 45,964.73, 68,951.08 and 12,684.80 is: 19,028.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,964.73 : 68,951.08 = 12,684.80 : x
  2. Step 2: Convert to fraction form
    45,964.73/68,951.08 = 12,684.80/x
  3. Step 3: Cross multiply
    45,964.73x = 68,951.08 × 12,684.80
  4. Step 4: Simplify right side
    45,964.73x = 874,630,776.47
  5. Step 5: Solve for x
    x = 874,630,776.47/45,964.73
  6. Step 6: Final answer
    x = 19,028.30

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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.