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Finding the Fourth Proportional to 9,412, 14,121.84 and 4,792.48

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Solution

The fourth proportional to 9,412, 14,121.84 and 4,792.48 is: 7,190.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,412 : 14,121.84 = 4,792.48 : x
  2. Step 2: Convert to fraction form
    9,412/14,121.84 = 4,792.48/x
  3. Step 3: Cross multiply
    9,412x = 14,121.84 × 4,792.48
  4. Step 4: Simplify right side
    9,412x = 67,678,635.76
  5. Step 5: Solve for x
    x = 67,678,635.76/9,412
  6. Step 6: Final answer
    x = 7,190.68

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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.