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Finding the Fourth Proportional to 30,453.60, 45,649.26 and 17,278.14

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Solution

The fourth proportional to 30,453.60, 45,649.26 and 17,278.14 is: 25,899.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,453.60 : 45,649.26 = 17,278.14 : x
  2. Step 2: Convert to fraction form
    30,453.60/45,649.26 = 17,278.14/x
  3. Step 3: Cross multiply
    30,453.60x = 45,649.26 × 17,278.14
  4. Step 4: Simplify right side
    30,453.60x = 788,734,305.18
  5. Step 5: Solve for x
    x = 788,734,305.18/30,453.60
  6. Step 6: Final answer
    x = 25,899.54

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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.