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Finding the Fourth Proportional to 14,672.59, 20,245.06 and 8,706.20

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Solution

The fourth proportional to 14,672.59, 20,245.06 and 8,706.20 is: 12,012.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,672.59 : 20,245.06 = 8,706.20 : x
  2. Step 2: Convert to fraction form
    14,672.59/20,245.06 = 8,706.20/x
  3. Step 3: Cross multiply
    14,672.59x = 20,245.06 × 8,706.20
  4. Step 4: Simplify right side
    14,672.59x = 176,257,541.37
  5. Step 5: Solve for x
    x = 176,257,541.37/14,672.59
  6. Step 6: Final answer
    x = 12,012.71

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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.