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Finding the Fourth Proportional to 11,859.89, 16,366.95 and 6,482.55

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Solution

The fourth proportional to 11,859.89, 16,366.95 and 6,482.55 is: 8,946.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,859.89 : 16,366.95 = 6,482.55 : x
  2. Step 2: Convert to fraction form
    11,859.89/16,366.95 = 6,482.55/x
  3. Step 3: Cross multiply
    11,859.89x = 16,366.95 × 6,482.55
  4. Step 4: Simplify right side
    11,859.89x = 106,099,571.72
  5. Step 5: Solve for x
    x = 106,099,571.72/11,859.89
  6. Step 6: Final answer
    x = 8,946.09

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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.