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Finding the Fourth Proportional to 18,531.75, 27,800.51 and 6,222.63

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Solution

The fourth proportional to 18,531.75, 27,800.51 and 6,222.63 is: 9,334.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,531.75 : 27,800.51 = 6,222.63 : x
  2. Step 2: Convert to fraction form
    18,531.75/27,800.51 = 6,222.63/x
  3. Step 3: Cross multiply
    18,531.75x = 27,800.51 × 6,222.63
  4. Step 4: Simplify right side
    18,531.75x = 172,992,256.43
  5. Step 5: Solve for x
    x = 172,992,256.43/18,531.75
  6. Step 6: Final answer
    x = 9,334.91

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1.5x scale

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.