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Finding the Fourth Proportional to 35,321.68, 52,982.52 and 13,134.57

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Solution

The fourth proportional to 35,321.68, 52,982.52 and 13,134.57 is: 19,701.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,321.68 : 52,982.52 = 13,134.57 : x
  2. Step 2: Convert to fraction form
    35,321.68/52,982.52 = 13,134.57/x
  3. Step 3: Cross multiply
    35,321.68x = 52,982.52 × 13,134.57
  4. Step 4: Simplify right side
    35,321.68x = 695,902,617.72
  5. Step 5: Solve for x
    x = 695,902,617.72/35,321.68
  6. Step 6: Final answer
    x = 19,701.86

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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.