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Finding the Fourth Proportional to 21,743,993.56, 30,006,730.32 and 11,954,604.28

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Solution

The fourth proportional to 21,743,993.56, 30,006,730.32 and 11,954,604.28 is: 16,497,364.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,743,993.56 : 30,006,730.32 = 11,954,604.28 : x
  2. Step 2: Convert to fraction form
    21,743,993.56/30,006,730.32 = 11,954,604.28/x
  3. Step 3: Cross multiply
    21,743,993.56x = 30,006,730.32 × 11,954,604.28
  4. Step 4: Simplify right side
    21,743,993.56x = 358,718,586,712,277.75
  5. Step 5: Solve for x
    x = 358,718,586,712,277.75/21,743,993.56
  6. Step 6: Final answer
    x = 16,497,364.47

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.