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Finding the Fourth Proportional to 5,445.70, 8,106.97 and 5,413.30

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Solution

The fourth proportional to 5,445.70, 8,106.97 and 5,413.30 is: 8,058.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.70 : 8,106.97 = 5,413.30 : x
  2. Step 2: Convert to fraction form
    5,445.70/8,106.97 = 5,413.30/x
  3. Step 3: Cross multiply
    5,445.70x = 8,106.97 × 5,413.30
  4. Step 4: Simplify right side
    5,445.70x = 43,885,433.63
  5. Step 5: Solve for x
    x = 43,885,433.63/5,445.70
  6. Step 6: Final answer
    x = 8,058.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.