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Finding the Fourth Proportional to 7,654.05, 11,482.88 and 2,388.87

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Solution

The fourth proportional to 7,654.05, 11,482.88 and 2,388.87 is: 3,583.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,654.05 : 11,482.88 = 2,388.87 : x
  2. Step 2: Convert to fraction form
    7,654.05/11,482.88 = 2,388.87/x
  3. Step 3: Cross multiply
    7,654.05x = 11,482.88 × 2,388.87
  4. Step 4: Simplify right side
    7,654.05x = 27,431,095.60
  5. Step 5: Solve for x
    x = 27,431,095.60/7,654.05
  6. Step 6: Final answer
    x = 3,583.87

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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.