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Finding the Fourth Proportional to 25,445.83, 35,142.71 and 19,847.11

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Solution

The fourth proportional to 25,445.83, 35,142.71 and 19,847.11 is: 27,410.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,445.83 : 35,142.71 = 19,847.11 : x
  2. Step 2: Convert to fraction form
    25,445.83/35,142.71 = 19,847.11/x
  3. Step 3: Cross multiply
    25,445.83x = 35,142.71 × 19,847.11
  4. Step 4: Simplify right side
    25,445.83x = 697,481,231.07
  5. Step 5: Solve for x
    x = 697,481,231.07/25,445.83
  6. Step 6: Final answer
    x = 27,410.43

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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.