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Finding the Fourth Proportional to 35,361.36, 53,009.04 and 11,971.44

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Solution

The fourth proportional to 35,361.36, 53,009.04 and 11,971.44 is: 17,945.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,361.36 : 53,009.04 = 11,971.44 : x
  2. Step 2: Convert to fraction form
    35,361.36/53,009.04 = 11,971.44/x
  3. Step 3: Cross multiply
    35,361.36x = 53,009.04 × 11,971.44
  4. Step 4: Simplify right side
    35,361.36x = 634,594,541.82
  5. Step 5: Solve for x
    x = 634,594,541.82/35,361.36
  6. Step 6: Final answer
    x = 17,945.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.