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Finding the Fourth Proportional to 35,993.70, 53,933.58 and 21,959.91

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Solution

The fourth proportional to 35,993.70, 53,933.58 and 21,959.91 is: 32,905.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,993.70 : 53,933.58 = 21,959.91 : x
  2. Step 2: Convert to fraction form
    35,993.70/53,933.58 = 21,959.91/x
  3. Step 3: Cross multiply
    35,993.70x = 53,933.58 × 21,959.91
  4. Step 4: Simplify right side
    35,993.70x = 1,184,376,562.78
  5. Step 5: Solve for x
    x = 1,184,376,562.78/35,993.70
  6. Step 6: Final answer
    x = 32,905.11

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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.