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Finding the Fourth Proportional to 28,747.35, 43,125.06 and 12,096.99

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Solution

The fourth proportional to 28,747.35, 43,125.06 and 12,096.99 is: 18,147.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,747.35 : 43,125.06 = 12,096.99 : x
  2. Step 2: Convert to fraction form
    28,747.35/43,125.06 = 12,096.99/x
  3. Step 3: Cross multiply
    28,747.35x = 43,125.06 × 12,096.99
  4. Step 4: Simplify right side
    28,747.35x = 521,683,419.57
  5. Step 5: Solve for x
    x = 521,683,419.57/28,747.35
  6. Step 6: Final answer
    x = 18,147.18

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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.