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Finding the Fourth Proportional to 35,489.84, 53,169.15 and 17,917.70

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Solution

The fourth proportional to 35,489.84, 53,169.15 and 17,917.70 is: 26,843.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,489.84 : 53,169.15 = 17,917.70 : x
  2. Step 2: Convert to fraction form
    35,489.84/53,169.15 = 17,917.70/x
  3. Step 3: Cross multiply
    35,489.84x = 53,169.15 × 17,917.70
  4. Step 4: Simplify right side
    35,489.84x = 952,668,878.96
  5. Step 5: Solve for x
    x = 952,668,878.96/35,489.84
  6. Step 6: Final answer
    x = 26,843.43

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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.