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Finding the Fourth Proportional to 13,466.92, 18,599.90 and 8,982.88

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Solution

The fourth proportional to 13,466.92, 18,599.90 and 8,982.88 is: 12,406.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,466.92 : 18,599.90 = 8,982.88 : x
  2. Step 2: Convert to fraction form
    13,466.92/18,599.90 = 8,982.88/x
  3. Step 3: Cross multiply
    13,466.92x = 18,599.90 × 8,982.88
  4. Step 4: Simplify right side
    13,466.92x = 167,080,669.71
  5. Step 5: Solve for x
    x = 167,080,669.71/13,466.92
  6. Step 6: Final answer
    x = 12,406.75

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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.