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Finding the Fourth Proportional to 18,448.14, 25,460.60 and 10,491.56

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Solution

The fourth proportional to 18,448.14, 25,460.60 and 10,491.56 is: 14,479.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,448.14 : 25,460.60 = 10,491.56 : x
  2. Step 2: Convert to fraction form
    18,448.14/25,460.60 = 10,491.56/x
  3. Step 3: Cross multiply
    18,448.14x = 25,460.60 × 10,491.56
  4. Step 4: Simplify right side
    18,448.14x = 267,121,412.54
  5. Step 5: Solve for x
    x = 267,121,412.54/18,448.14
  6. Step 6: Final answer
    x = 14,479.59

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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.