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Finding the Fourth Proportional to 14,611.53, 20,148.06 and 9,299.55

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Solution

The fourth proportional to 14,611.53, 20,148.06 and 9,299.55 is: 12,823.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,611.53 : 20,148.06 = 9,299.55 : x
  2. Step 2: Convert to fraction form
    14,611.53/20,148.06 = 9,299.55/x
  3. Step 3: Cross multiply
    14,611.53x = 20,148.06 × 9,299.55
  4. Step 4: Simplify right side
    14,611.53x = 187,367,891.37
  5. Step 5: Solve for x
    x = 187,367,891.37/14,611.53
  6. Step 6: Final answer
    x = 12,823.29

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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.