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Finding the Fourth Proportional to 35,978.36, 53,954.58 and 15,203.48

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Solution

The fourth proportional to 35,978.36, 53,954.58 and 15,203.48 is: 22,799.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,978.36 : 53,954.58 = 15,203.48 : x
  2. Step 2: Convert to fraction form
    35,978.36/53,954.58 = 15,203.48/x
  3. Step 3: Cross multiply
    35,978.36x = 53,954.58 × 15,203.48
  4. Step 4: Simplify right side
    35,978.36x = 820,297,377.94
  5. Step 5: Solve for x
    x = 820,297,377.94/35,978.36
  6. Step 6: Final answer
    x = 22,799.74

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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.