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Finding the Fourth Proportional to 14,956.44, 20,643.52 and 8,672.44

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Solution

The fourth proportional to 14,956.44, 20,643.52 and 8,672.44 is: 11,970.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,956.44 : 20,643.52 = 8,672.44 : x
  2. Step 2: Convert to fraction form
    14,956.44/20,643.52 = 8,672.44/x
  3. Step 3: Cross multiply
    14,956.44x = 20,643.52 × 8,672.44
  4. Step 4: Simplify right side
    14,956.44x = 179,029,688.59
  5. Step 5: Solve for x
    x = 179,029,688.59/14,956.44
  6. Step 6: Final answer
    x = 11,970.07

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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.