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Finding the Fourth Proportional to 19,602.17, 27,051.60 and 11,221.37

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Solution

The fourth proportional to 19,602.17, 27,051.60 and 11,221.37 is: 15,485.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,602.17 : 27,051.60 = 11,221.37 : x
  2. Step 2: Convert to fraction form
    19,602.17/27,051.60 = 11,221.37/x
  3. Step 3: Cross multiply
    19,602.17x = 27,051.60 × 11,221.37
  4. Step 4: Simplify right side
    19,602.17x = 303,555,877.43
  5. Step 5: Solve for x
    x = 303,555,877.43/19,602.17
  6. Step 6: Final answer
    x = 15,485.83

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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.