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Finding the Fourth Proportional to 14,908.55, 20,573.81 and 8,194.12

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Solution

The fourth proportional to 14,908.55, 20,573.81 and 8,194.12 is: 11,307.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,908.55 : 20,573.81 = 8,194.12 : x
  2. Step 2: Convert to fraction form
    14,908.55/20,573.81 = 8,194.12/x
  3. Step 3: Cross multiply
    14,908.55x = 20,573.81 × 8,194.12
  4. Step 4: Simplify right side
    14,908.55x = 168,584,227.03
  5. Step 5: Solve for x
    x = 168,584,227.03/14,908.55
  6. Step 6: Final answer
    x = 11,307.89

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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.