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Finding the Fourth Proportional to 14,772.66, 20,406.24 and 11,809.41

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Solution

The fourth proportional to 14,772.66, 20,406.24 and 11,809.41 is: 16,312.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,772.66 : 20,406.24 = 11,809.41 : x
  2. Step 2: Convert to fraction form
    14,772.66/20,406.24 = 11,809.41/x
  3. Step 3: Cross multiply
    14,772.66x = 20,406.24 × 11,809.41
  4. Step 4: Simplify right side
    14,772.66x = 240,985,654.72
  5. Step 5: Solve for x
    x = 240,985,654.72/14,772.66
  6. Step 6: Final answer
    x = 16,312.95

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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.