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Finding the Fourth Proportional to 35,391.57, 53,096.54 and 13,205.11

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Solution

The fourth proportional to 35,391.57, 53,096.54 and 13,205.11 is: 19,811.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,391.57 : 53,096.54 = 13,205.11 : x
  2. Step 2: Convert to fraction form
    35,391.57/53,096.54 = 13,205.11/x
  3. Step 3: Cross multiply
    35,391.57x = 53,096.54 × 13,205.11
  4. Step 4: Simplify right side
    35,391.57x = 701,145,589.25
  5. Step 5: Solve for x
    x = 701,145,589.25/35,391.57
  6. Step 6: Final answer
    x = 19,811.09

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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.