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Finding the Fourth Proportional to 8,902.21, 12,284.56 and 4,868.24

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Solution

The fourth proportional to 8,902.21, 12,284.56 and 4,868.24 is: 6,717.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,902.21 : 12,284.56 = 4,868.24 : x
  2. Step 2: Convert to fraction form
    8,902.21/12,284.56 = 4,868.24/x
  3. Step 3: Cross multiply
    8,902.21x = 12,284.56 × 4,868.24
  4. Step 4: Simplify right side
    8,902.21x = 59,804,202.13
  5. Step 5: Solve for x
    x = 59,804,202.13/8,902.21
  6. Step 6: Final answer
    x = 6,717.90

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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.