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Finding the Fourth Proportional to 12,892.49, 19,340.08 and 5,497.73

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Solution

The fourth proportional to 12,892.49, 19,340.08 and 5,497.73 is: 8,247.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,892.49 : 19,340.08 = 5,497.73 : x
  2. Step 2: Convert to fraction form
    12,892.49/19,340.08 = 5,497.73/x
  3. Step 3: Cross multiply
    12,892.49x = 19,340.08 × 5,497.73
  4. Step 4: Simplify right side
    12,892.49x = 106,326,413.83
  5. Step 5: Solve for x
    x = 106,326,413.83/12,892.49
  6. Step 6: Final answer
    x = 8,247.16

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Double scale
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Similar ratio
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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.