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Finding the Fourth Proportional to 19,376.88, 26,740.92 and 10,994.16

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Solution

The fourth proportional to 19,376.88, 26,740.92 and 10,994.16 is: 15,172.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,376.88 : 26,740.92 = 10,994.16 : x
  2. Step 2: Convert to fraction form
    19,376.88/26,740.92 = 10,994.16/x
  3. Step 3: Cross multiply
    19,376.88x = 26,740.92 × 10,994.16
  4. Step 4: Simplify right side
    19,376.88x = 293,993,953.03
  5. Step 5: Solve for x
    x = 293,993,953.03/19,376.88
  6. Step 6: Final answer
    x = 15,172.41

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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.