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Finding the Fourth Proportional to 45,413.40, 68,022.90 and 37,637.40

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Solution

The fourth proportional to 45,413.40, 68,022.90 and 37,637.40 is: 56,375.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,413.40 : 68,022.90 = 37,637.40 : x
  2. Step 2: Convert to fraction form
    45,413.40/68,022.90 = 37,637.40/x
  3. Step 3: Cross multiply
    45,413.40x = 68,022.90 × 37,637.40
  4. Step 4: Simplify right side
    45,413.40x = 2,560,205,096.46
  5. Step 5: Solve for x
    x = 2,560,205,096.46/45,413.40
  6. Step 6: Final answer
    x = 56,375.54

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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.