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Finding the Fourth Proportional to 14,672.84, 20,252.04 and 8,388.86

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Solution

The fourth proportional to 14,672.84, 20,252.04 and 8,388.86 is: 11,578.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,672.84 : 20,252.04 = 8,388.86 : x
  2. Step 2: Convert to fraction form
    14,672.84/20,252.04 = 8,388.86/x
  3. Step 3: Cross multiply
    14,672.84x = 20,252.04 × 8,388.86
  4. Step 4: Simplify right side
    14,672.84x = 169,891,528.27
  5. Step 5: Solve for x
    x = 169,891,528.27/14,672.84
  6. Step 6: Final answer
    x = 11,578.64

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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.