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Finding the Fourth Proportional to 72,367.09, 108,554.90 and 27,994.07

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Solution

The fourth proportional to 72,367.09, 108,554.90 and 27,994.07 is: 41,992.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,367.09 : 108,554.90 = 27,994.07 : x
  2. Step 2: Convert to fraction form
    72,367.09/108,554.90 = 27,994.07/x
  3. Step 3: Cross multiply
    72,367.09x = 108,554.90 × 27,994.07
  4. Step 4: Simplify right side
    72,367.09x = 3,038,893,600.86
  5. Step 5: Solve for x
    x = 3,038,893,600.86/72,367.09
  6. Step 6: Final answer
    x = 41,992.76

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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.