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Finding the Fourth Proportional to 44,880, 67,329.72 and 17,178

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Solution

The fourth proportional to 44,880, 67,329.72 and 17,178 is: 25,770.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,880 : 67,329.72 = 17,178 : x
  2. Step 2: Convert to fraction form
    44,880/67,329.72 = 17,178/x
  3. Step 3: Cross multiply
    44,880x = 67,329.72 × 17,178
  4. Step 4: Simplify right side
    44,880x = 1,156,589,930.16
  5. Step 5: Solve for x
    x = 1,156,589,930.16/44,880
  6. Step 6: Final answer
    x = 25,770.72

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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.