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Finding the Fourth Proportional to 11,343.66, 16,993.62 and 9,492

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Solution

The fourth proportional to 11,343.66, 16,993.62 and 9,492 is: 14,219.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,343.66 : 16,993.62 = 9,492 : x
  2. Step 2: Convert to fraction form
    11,343.66/16,993.62 = 9,492/x
  3. Step 3: Cross multiply
    11,343.66x = 16,993.62 × 9,492
  4. Step 4: Simplify right side
    11,343.66x = 161,303,441.04
  5. Step 5: Solve for x
    x = 161,303,441.04/11,343.66
  6. Step 6: Final answer
    x = 14,219.70

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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.