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Finding the Fourth Proportional to 25,998.40, 35,878.64 and 14,667.68

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Solution

The fourth proportional to 25,998.40, 35,878.64 and 14,667.68 is: 20,241.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,998.40 : 35,878.64 = 14,667.68 : x
  2. Step 2: Convert to fraction form
    25,998.40/35,878.64 = 14,667.68/x
  3. Step 3: Cross multiply
    25,998.40x = 35,878.64 × 14,667.68
  4. Step 4: Simplify right side
    25,998.40x = 526,256,410.36
  5. Step 5: Solve for x
    x = 526,256,410.36/25,998.40
  6. Step 6: Final answer
    x = 20,241.88

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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.