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Finding the Fourth Proportional to 33,880, 46,754.40 and 20,632

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Solution

The fourth proportional to 33,880, 46,754.40 and 20,632 is: 28,472.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,880 : 46,754.40 = 20,632 : x
  2. Step 2: Convert to fraction form
    33,880/46,754.40 = 20,632/x
  3. Step 3: Cross multiply
    33,880x = 46,754.40 × 20,632
  4. Step 4: Simplify right side
    33,880x = 964,636,780.80
  5. Step 5: Solve for x
    x = 964,636,780.80/33,880
  6. Step 6: Final answer
    x = 28,472.16

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.