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Finding the Fourth Proportional to 28,863.30, 43,293.33 and 7,803.03

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Solution

The fourth proportional to 28,863.30, 43,293.33 and 7,803.03 is: 11,704.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,863.30 : 43,293.33 = 7,803.03 : x
  2. Step 2: Convert to fraction form
    28,863.30/43,293.33 = 7,803.03/x
  3. Step 3: Cross multiply
    28,863.30x = 43,293.33 × 7,803.03
  4. Step 4: Simplify right side
    28,863.30x = 337,819,152.79
  5. Step 5: Solve for x
    x = 337,819,152.79/28,863.30
  6. Step 6: Final answer
    x = 11,704.11

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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.