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Finding the Fourth Proportional to 28,992.52, 39,947.94 and 19,544.68

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Solution

The fourth proportional to 28,992.52, 39,947.94 and 19,544.68 is: 26,930.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,992.52 : 39,947.94 = 19,544.68 : x
  2. Step 2: Convert to fraction form
    28,992.52/39,947.94 = 19,544.68/x
  3. Step 3: Cross multiply
    28,992.52x = 39,947.94 × 19,544.68
  4. Step 4: Simplify right side
    28,992.52x = 780,769,703.96
  5. Step 5: Solve for x
    x = 780,769,703.96/28,992.52
  6. Step 6: Final answer
    x = 26,930.04

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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.