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Finding the Fourth Proportional to 30,561.46, 45,844.22 and 8,372.97

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Solution

The fourth proportional to 30,561.46, 45,844.22 and 8,372.97 is: 12,560.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,561.46 : 45,844.22 = 8,372.97 : x
  2. Step 2: Convert to fraction form
    30,561.46/45,844.22 = 8,372.97/x
  3. Step 3: Cross multiply
    30,561.46x = 45,844.22 × 8,372.97
  4. Step 4: Simplify right side
    30,561.46x = 383,852,299.67
  5. Step 5: Solve for x
    x = 383,852,299.67/30,561.46
  6. Step 6: Final answer
    x = 12,560.01

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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.