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Finding the Fourth Proportional to 14,611.38, 21,922.59 and 8,772.06

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Solution

The fourth proportional to 14,611.38, 21,922.59 and 8,772.06 is: 13,161.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,611.38 : 21,922.59 = 8,772.06 : x
  2. Step 2: Convert to fraction form
    14,611.38/21,922.59 = 8,772.06/x
  3. Step 3: Cross multiply
    14,611.38x = 21,922.59 × 8,772.06
  4. Step 4: Simplify right side
    14,611.38x = 192,306,274.84
  5. Step 5: Solve for x
    x = 192,306,274.84/14,611.38
  6. Step 6: Final answer
    x = 13,161.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.