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Finding the Fourth Proportional to 44,003.61, 66,020.54 and 12,843.45

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Solution

The fourth proportional to 44,003.61, 66,020.54 and 12,843.45 is: 19,269.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,003.61 : 66,020.54 = 12,843.45 : x
  2. Step 2: Convert to fraction form
    44,003.61/66,020.54 = 12,843.45/x
  3. Step 3: Cross multiply
    44,003.61x = 66,020.54 × 12,843.45
  4. Step 4: Simplify right side
    44,003.61x = 847,931,440.25
  5. Step 5: Solve for x
    x = 847,931,440.25/44,003.61
  6. Step 6: Final answer
    x = 19,269.59

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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.