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Finding the Fourth Proportional to 4,381.36, 6,573.12 and 4,021.36

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Solution

The fourth proportional to 4,381.36, 6,573.12 and 4,021.36 is: 6,033.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,381.36 : 6,573.12 = 4,021.36 : x
  2. Step 2: Convert to fraction form
    4,381.36/6,573.12 = 4,021.36/x
  3. Step 3: Cross multiply
    4,381.36x = 6,573.12 × 4,021.36
  4. Step 4: Simplify right side
    4,381.36x = 26,432,881.84
  5. Step 5: Solve for x
    x = 26,432,881.84/4,381.36
  6. Step 6: Final answer
    x = 6,033.03

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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.