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Finding the Fourth Proportional to 8,985.41, 13,479.44 and 2,744.60

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Solution

The fourth proportional to 8,985.41, 13,479.44 and 2,744.60 is: 4,117.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,985.41 : 13,479.44 = 2,744.60 : x
  2. Step 2: Convert to fraction form
    8,985.41/13,479.44 = 2,744.60/x
  3. Step 3: Cross multiply
    8,985.41x = 13,479.44 × 2,744.60
  4. Step 4: Simplify right side
    8,985.41x = 36,995,659.23
  5. Step 5: Solve for x
    x = 36,995,659.23/8,985.41
  6. Step 6: Final answer
    x = 4,117.30

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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.