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Finding the Fourth Proportional to 7,492.36, 11,232.36 and 2,989.86

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Solution

The fourth proportional to 7,492.36, 11,232.36 and 2,989.86 is: 4,482.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,492.36 : 11,232.36 = 2,989.86 : x
  2. Step 2: Convert to fraction form
    7,492.36/11,232.36 = 2,989.86/x
  3. Step 3: Cross multiply
    7,492.36x = 11,232.36 × 2,989.86
  4. Step 4: Simplify right side
    7,492.36x = 33,583,183.87
  5. Step 5: Solve for x
    x = 33,583,183.87/7,492.36
  6. Step 6: Final answer
    x = 4,482.32

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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.