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Finding the Fourth Proportional to 12,392.58, 18,591 and 6,152.95

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Solution

The fourth proportional to 12,392.58, 18,591 and 6,152.95 is: 9,230.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,392.58 : 18,591 = 6,152.95 : x
  2. Step 2: Convert to fraction form
    12,392.58/18,591 = 6,152.95/x
  3. Step 3: Cross multiply
    12,392.58x = 18,591 × 6,152.95
  4. Step 4: Simplify right side
    12,392.58x = 114,389,493.45
  5. Step 5: Solve for x
    x = 114,389,493.45/12,392.58
  6. Step 6: Final answer
    x = 9,230.48

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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.