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Finding the Fourth Proportional to 5,371.99, 7,413.08 and 2,981.95

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Solution

The fourth proportional to 5,371.99, 7,413.08 and 2,981.95 is: 4,114.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,371.99 : 7,413.08 = 2,981.95 : x
  2. Step 2: Convert to fraction form
    5,371.99/7,413.08 = 2,981.95/x
  3. Step 3: Cross multiply
    5,371.99x = 7,413.08 × 2,981.95
  4. Step 4: Simplify right side
    5,371.99x = 22,105,400.46
  5. Step 5: Solve for x
    x = 22,105,400.46/5,371.99
  6. Step 6: Final answer
    x = 4,114.94

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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.