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Finding the Fourth Proportional to 29,025.30, 40,042.98 and 18,950.25

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Solution

The fourth proportional to 29,025.30, 40,042.98 and 18,950.25 is: 26,143.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,025.30 : 40,042.98 = 18,950.25 : x
  2. Step 2: Convert to fraction form
    29,025.30/40,042.98 = 18,950.25/x
  3. Step 3: Cross multiply
    29,025.30x = 40,042.98 × 18,950.25
  4. Step 4: Simplify right side
    29,025.30x = 758,824,481.75
  5. Step 5: Solve for x
    x = 758,824,481.75/29,025.30
  6. Step 6: Final answer
    x = 26,143.55

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1.5x scale

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.