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Finding the Fourth Proportional to 27,229.65, 40,787.07 and 12,451.01

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Solution

The fourth proportional to 27,229.65, 40,787.07 and 12,451.01 is: 18,650.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,229.65 : 40,787.07 = 12,451.01 : x
  2. Step 2: Convert to fraction form
    27,229.65/40,787.07 = 12,451.01/x
  3. Step 3: Cross multiply
    27,229.65x = 40,787.07 × 12,451.01
  4. Step 4: Simplify right side
    27,229.65x = 507,840,012.51
  5. Step 5: Solve for x
    x = 507,840,012.51/27,229.65
  6. Step 6: Final answer
    x = 18,650.26

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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.