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Finding the Fourth Proportional to 14,896.56, 20,559.78 and 8,612.58

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Solution

The fourth proportional to 14,896.56, 20,559.78 and 8,612.58 is: 11,886.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,896.56 : 20,559.78 = 8,612.58 : x
  2. Step 2: Convert to fraction form
    14,896.56/20,559.78 = 8,612.58/x
  3. Step 3: Cross multiply
    14,896.56x = 20,559.78 × 8,612.58
  4. Step 4: Simplify right side
    14,896.56x = 177,072,750.03
  5. Step 5: Solve for x
    x = 177,072,750.03/14,896.56
  6. Step 6: Final answer
    x = 11,886.82

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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.