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Finding the Fourth Proportional to 12,709.44, 19,062 and 4,918.32

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Solution

The fourth proportional to 12,709.44, 19,062 and 4,918.32 is: 7,376.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,709.44 : 19,062 = 4,918.32 : x
  2. Step 2: Convert to fraction form
    12,709.44/19,062 = 4,918.32/x
  3. Step 3: Cross multiply
    12,709.44x = 19,062 × 4,918.32
  4. Step 4: Simplify right side
    12,709.44x = 93,753,015.84
  5. Step 5: Solve for x
    x = 93,753,015.84/12,709.44
  6. Step 6: Final answer
    x = 7,376.64

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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.