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Finding the Fourth Proportional to 35,299.40, 52,893.81 and 13,107.42

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Solution

The fourth proportional to 35,299.40, 52,893.81 and 13,107.42 is: 19,640.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,299.40 : 52,893.81 = 13,107.42 : x
  2. Step 2: Convert to fraction form
    35,299.40/52,893.81 = 13,107.42/x
  3. Step 3: Cross multiply
    35,299.40x = 52,893.81 × 13,107.42
  4. Step 4: Simplify right side
    35,299.40x = 693,301,383.07
  5. Step 5: Solve for x
    x = 693,301,383.07/35,299.40
  6. Step 6: Final answer
    x = 19,640.60

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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.