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Finding the Fourth Proportional to 32,520.70, 44,915.58 and 21,891.88

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Solution

The fourth proportional to 32,520.70, 44,915.58 and 21,891.88 is: 30,235.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,520.70 : 44,915.58 = 21,891.88 : x
  2. Step 2: Convert to fraction form
    32,520.70/44,915.58 = 21,891.88/x
  3. Step 3: Cross multiply
    32,520.70x = 44,915.58 × 21,891.88
  4. Step 4: Simplify right side
    32,520.70x = 983,286,487.49
  5. Step 5: Solve for x
    x = 983,286,487.49/32,520.70
  6. Step 6: Final answer
    x = 30,235.71

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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.