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Finding the Fourth Proportional to 5,413.95, 7,471.25 and 2,929.95

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Solution

The fourth proportional to 5,413.95, 7,471.25 and 2,929.95 is: 4,043.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.95 : 7,471.25 = 2,929.95 : x
  2. Step 2: Convert to fraction form
    5,413.95/7,471.25 = 2,929.95/x
  3. Step 3: Cross multiply
    5,413.95x = 7,471.25 × 2,929.95
  4. Step 4: Simplify right side
    5,413.95x = 21,890,339.27
  5. Step 5: Solve for x
    x = 21,890,339.27/5,413.95
  6. Step 6: Final answer
    x = 4,043.32

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1.5x scale

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.