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Finding the Fourth Proportional to 35,361.36, 53,051.49 and 11,987.73

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Solution

The fourth proportional to 35,361.36, 53,051.49 and 11,987.73 is: 17,984.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,361.36 : 53,051.49 = 11,987.73 : x
  2. Step 2: Convert to fraction form
    35,361.36/53,051.49 = 11,987.73/x
  3. Step 3: Cross multiply
    35,361.36x = 53,051.49 × 11,987.73
  4. Step 4: Simplify right side
    35,361.36x = 635,966,938.22
  5. Step 5: Solve for x
    x = 635,966,938.22/35,361.36
  6. Step 6: Final answer
    x = 17,984.80

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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.