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Finding the Fourth Proportional to 13,482.12, 18,599.94 and 8,764.68

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Solution

The fourth proportional to 13,482.12, 18,599.94 and 8,764.68 is: 12,091.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,482.12 : 18,599.94 = 8,764.68 : x
  2. Step 2: Convert to fraction form
    13,482.12/18,599.94 = 8,764.68/x
  3. Step 3: Cross multiply
    13,482.12x = 18,599.94 × 8,764.68
  4. Step 4: Simplify right side
    13,482.12x = 163,022,522.12
  5. Step 5: Solve for x
    x = 163,022,522.12/13,482.12
  6. Step 6: Final answer
    x = 12,091.76

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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.