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Finding the Fourth Proportional to 29,482.48, 44,215.90 and 20,120.82

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Solution

The fourth proportional to 29,482.48, 44,215.90 and 20,120.82 is: 30,175.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,482.48 : 44,215.90 = 20,120.82 : x
  2. Step 2: Convert to fraction form
    29,482.48/44,215.90 = 20,120.82/x
  3. Step 3: Cross multiply
    29,482.48x = 44,215.90 × 20,120.82
  4. Step 4: Simplify right side
    29,482.48x = 889,660,165.04
  5. Step 5: Solve for x
    x = 889,660,165.04/29,482.48
  6. Step 6: Final answer
    x = 30,175.89

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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.