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Finding the Fourth Proportional to 29,672.88, 44,521.02 and 13,021.32

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Solution

The fourth proportional to 29,672.88, 44,521.02 and 13,021.32 is: 19,537.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,672.88 : 44,521.02 = 13,021.32 : x
  2. Step 2: Convert to fraction form
    29,672.88/44,521.02 = 13,021.32/x
  3. Step 3: Cross multiply
    29,672.88x = 44,521.02 × 13,021.32
  4. Step 4: Simplify right side
    29,672.88x = 579,722,448.15
  5. Step 5: Solve for x
    x = 579,722,448.15/29,672.88
  6. Step 6: Final answer
    x = 19,537.11

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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.