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Finding the Fourth Proportional to 11,636.72, 17,471.48 and 8,348.02

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Solution

The fourth proportional to 11,636.72, 17,471.48 and 8,348.02 is: 12,533.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,636.72 : 17,471.48 = 8,348.02 : x
  2. Step 2: Convert to fraction form
    11,636.72/17,471.48 = 8,348.02/x
  3. Step 3: Cross multiply
    11,636.72x = 17,471.48 × 8,348.02
  4. Step 4: Simplify right side
    11,636.72x = 145,852,135.37
  5. Step 5: Solve for x
    x = 145,852,135.37/11,636.72
  6. Step 6: Final answer
    x = 12,533.79

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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.