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Finding the Fourth Proportional to 23,144.90, 34,629.60 and 15,368.90

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Solution

The fourth proportional to 23,144.90, 34,629.60 and 15,368.90 is: 22,995.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,144.90 : 34,629.60 = 15,368.90 : x
  2. Step 2: Convert to fraction form
    23,144.90/34,629.60 = 15,368.90/x
  3. Step 3: Cross multiply
    23,144.90x = 34,629.60 × 15,368.90
  4. Step 4: Simplify right side
    23,144.90x = 532,218,859.44
  5. Step 5: Solve for x
    x = 532,218,859.44/23,144.90
  6. Step 6: Final answer
    x = 22,995.08

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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.