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Finding the Fourth Proportional to 35,519.90, 53,304.15 and 19,724.90

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Solution

The fourth proportional to 35,519.90, 53,304.15 and 19,724.90 is: 29,600.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,519.90 : 53,304.15 = 19,724.90 : x
  2. Step 2: Convert to fraction form
    35,519.90/53,304.15 = 19,724.90/x
  3. Step 3: Cross multiply
    35,519.90x = 53,304.15 × 19,724.90
  4. Step 4: Simplify right side
    35,519.90x = 1,051,419,028.34
  5. Step 5: Solve for x
    x = 1,051,419,028.34/35,519.90
  6. Step 6: Final answer
    x = 29,600.84

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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.