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Finding the Fourth Proportional to 7,768.79, 10,708.13 and 5,497.20

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Solution

The fourth proportional to 7,768.79, 10,708.13 and 5,497.20 is: 7,577.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,768.79 : 10,708.13 = 5,497.20 : x
  2. Step 2: Convert to fraction form
    7,768.79/10,708.13 = 5,497.20/x
  3. Step 3: Cross multiply
    7,768.79x = 10,708.13 × 5,497.20
  4. Step 4: Simplify right side
    7,768.79x = 58,864,704.75
  5. Step 5: Solve for x
    x = 58,864,704.75/7,768.79
  6. Step 6: Final answer
    x = 7,577.08

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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.