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Finding the Fourth Proportional to 44,916.80, 67,413.60 and 19,995.20

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Solution

The fourth proportional to 44,916.80, 67,413.60 and 19,995.20 is: 30,009.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,916.80 : 67,413.60 = 19,995.20 : x
  2. Step 2: Convert to fraction form
    44,916.80/67,413.60 = 19,995.20/x
  3. Step 3: Cross multiply
    44,916.80x = 67,413.60 × 19,995.20
  4. Step 4: Simplify right side
    44,916.80x = 1,347,948,414.72
  5. Step 5: Solve for x
    x = 1,347,948,414.72/44,916.80
  6. Step 6: Final answer
    x = 30,009.89

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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.