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Finding the Fourth Proportional to 23,763.21, 32,720.04 and 21,106.01

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Solution

The fourth proportional to 23,763.21, 32,720.04 and 21,106.01 is: 29,061.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,763.21 : 32,720.04 = 21,106.01 : x
  2. Step 2: Convert to fraction form
    23,763.21/32,720.04 = 21,106.01/x
  3. Step 3: Cross multiply
    23,763.21x = 32,720.04 × 21,106.01
  4. Step 4: Simplify right side
    23,763.21x = 690,589,491.44
  5. Step 5: Solve for x
    x = 690,589,491.44/23,763.21
  6. Step 6: Final answer
    x = 29,061.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.