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Finding the Fourth Proportional to 14,689.61, 20,252.09 and 11,674.80

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Solution

The fourth proportional to 14,689.61, 20,252.09 and 11,674.80 is: 16,095.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,689.61 : 20,252.09 = 11,674.80 : x
  2. Step 2: Convert to fraction form
    14,689.61/20,252.09 = 11,674.80/x
  3. Step 3: Cross multiply
    14,689.61x = 20,252.09 × 11,674.80
  4. Step 4: Simplify right side
    14,689.61x = 236,439,041.96
  5. Step 5: Solve for x
    x = 236,439,041.96/14,689.61
  6. Step 6: Final answer
    x = 16,095.66

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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.