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Finding the Fourth Proportional to 8,987.94, 13,481.87 and 2,413.58

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Solution

The fourth proportional to 8,987.94, 13,481.87 and 2,413.58 is: 3,620.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987.94 : 13,481.87 = 2,413.58 : x
  2. Step 2: Convert to fraction form
    8,987.94/13,481.87 = 2,413.58/x
  3. Step 3: Cross multiply
    8,987.94x = 13,481.87 × 2,413.58
  4. Step 4: Simplify right side
    8,987.94x = 32,539,492.32
  5. Step 5: Solve for x
    x = 32,539,492.32/8,987.94
  6. Step 6: Final answer
    x = 3,620.35

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1.5x scale

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.