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Finding the Fourth Proportional to 12,364.10, 18,546.15 and 4,964.90

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Solution

The fourth proportional to 12,364.10, 18,546.15 and 4,964.90 is: 7,447.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,364.10 : 18,546.15 = 4,964.90 : x
  2. Step 2: Convert to fraction form
    12,364.10/18,546.15 = 4,964.90/x
  3. Step 3: Cross multiply
    12,364.10x = 18,546.15 × 4,964.90
  4. Step 4: Simplify right side
    12,364.10x = 92,079,780.14
  5. Step 5: Solve for x
    x = 92,079,780.14/12,364.10
  6. Step 6: Final answer
    x = 7,447.35

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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.