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Finding the Fourth Proportional to 7,480.64, 11,211.24 and 7,364

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Solution

The fourth proportional to 7,480.64, 11,211.24 and 7,364 is: 11,036.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,480.64 : 11,211.24 = 7,364 : x
  2. Step 2: Convert to fraction form
    7,480.64/11,211.24 = 7,364/x
  3. Step 3: Cross multiply
    7,480.64x = 11,211.24 × 7,364
  4. Step 4: Simplify right side
    7,480.64x = 82,559,571.36
  5. Step 5: Solve for x
    x = 82,559,571.36/7,480.64
  6. Step 6: Final answer
    x = 11,036.43

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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.