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Finding the Fourth Proportional to 25,665.36, 35,410.68 and 15,055.44

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Solution

The fourth proportional to 25,665.36, 35,410.68 and 15,055.44 is: 20,772.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,665.36 : 35,410.68 = 15,055.44 : x
  2. Step 2: Convert to fraction form
    25,665.36/35,410.68 = 15,055.44/x
  3. Step 3: Cross multiply
    25,665.36x = 35,410.68 × 15,055.44
  4. Step 4: Simplify right side
    25,665.36x = 533,123,368.10
  5. Step 5: Solve for x
    x = 533,123,368.10/25,665.36
  6. Step 6: Final answer
    x = 20,772.10

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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.