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Finding the Fourth Proportional to 40,495.87, 55,918.65 and 25,413.67

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Solution

The fourth proportional to 40,495.87, 55,918.65 and 25,413.67 is: 35,092.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,495.87 : 55,918.65 = 25,413.67 : x
  2. Step 2: Convert to fraction form
    40,495.87/55,918.65 = 25,413.67/x
  3. Step 3: Cross multiply
    40,495.87x = 55,918.65 × 25,413.67
  4. Step 4: Simplify right side
    40,495.87x = 1,421,098,117.95
  5. Step 5: Solve for x
    x = 1,421,098,117.95/40,495.87
  6. Step 6: Final answer
    x = 35,092.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.