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Finding the Fourth Proportional to 11,242.45, 16,860.74 and 3,342.84

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Solution

The fourth proportional to 11,242.45, 16,860.74 and 3,342.84 is: 5,013.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,242.45 : 16,860.74 = 3,342.84 : x
  2. Step 2: Convert to fraction form
    11,242.45/16,860.74 = 3,342.84/x
  3. Step 3: Cross multiply
    11,242.45x = 16,860.74 × 3,342.84
  4. Step 4: Simplify right side
    11,242.45x = 56,362,774.00
  5. Step 5: Solve for x
    x = 56,362,774.00/11,242.45
  6. Step 6: Final answer
    x = 5,013.39

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.