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Finding the Fourth Proportional to 35,321.76, 48,744.36 and 19,406.54

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Solution

The fourth proportional to 35,321.76, 48,744.36 and 19,406.54 is: 26,781.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,321.76 : 48,744.36 = 19,406.54 : x
  2. Step 2: Convert to fraction form
    35,321.76/48,744.36 = 19,406.54/x
  3. Step 3: Cross multiply
    35,321.76x = 48,744.36 × 19,406.54
  4. Step 4: Simplify right side
    35,321.76x = 945,959,372.11
  5. Step 5: Solve for x
    x = 945,959,372.11/35,321.76
  6. Step 6: Final answer
    x = 26,781.21

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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.