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Finding the Fourth Proportional to 8,986.98, 13,478.65 and 2,411.64

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Solution

The fourth proportional to 8,986.98, 13,478.65 and 2,411.64 is: 3,616.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,986.98 : 13,478.65 = 2,411.64 : x
  2. Step 2: Convert to fraction form
    8,986.98/13,478.65 = 2,411.64/x
  3. Step 3: Cross multiply
    8,986.98x = 13,478.65 × 2,411.64
  4. Step 4: Simplify right side
    8,986.98x = 32,505,651.49
  5. Step 5: Solve for x
    x = 32,505,651.49/8,986.98
  6. Step 6: Final answer
    x = 3,616.97

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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.