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Finding the Fourth Proportional to 12,948.73, 19,409.73 and 7,092.97

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Solution

The fourth proportional to 12,948.73, 19,409.73 and 7,092.97 is: 10,632.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948.73 : 19,409.73 = 7,092.97 : x
  2. Step 2: Convert to fraction form
    12,948.73/19,409.73 = 7,092.97/x
  3. Step 3: Cross multiply
    12,948.73x = 19,409.73 × 7,092.97
  4. Step 4: Simplify right side
    12,948.73x = 137,672,632.60
  5. Step 5: Solve for x
    x = 137,672,632.60/12,948.73
  6. Step 6: Final answer
    x = 10,632.13

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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.