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Finding the Fourth Proportional to 23,692.79, 32,696.04 and 13,623.20

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Solution

The fourth proportional to 23,692.79, 32,696.04 and 13,623.20 is: 18,800.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,692.79 : 32,696.04 = 13,623.20 : x
  2. Step 2: Convert to fraction form
    23,692.79/32,696.04 = 13,623.20/x
  3. Step 3: Cross multiply
    23,692.79x = 32,696.04 × 13,623.20
  4. Step 4: Simplify right side
    23,692.79x = 445,424,528.65
  5. Step 5: Solve for x
    x = 445,424,528.65/23,692.79
  6. Step 6: Final answer
    x = 18,800.01

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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.