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Finding the Fourth Proportional to 72,093.67, 108,140.52 and 19,507.27

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Solution

The fourth proportional to 72,093.67, 108,140.52 and 19,507.27 is: 29,260.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,093.67 : 108,140.52 = 19,507.27 : x
  2. Step 2: Convert to fraction form
    72,093.67/108,140.52 = 19,507.27/x
  3. Step 3: Cross multiply
    72,093.67x = 108,140.52 × 19,507.27
  4. Step 4: Simplify right side
    72,093.67x = 2,109,526,321.58
  5. Step 5: Solve for x
    x = 2,109,526,321.58/72,093.67
  6. Step 6: Final answer
    x = 29,260.91

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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.