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Finding the Fourth Proportional to 28,699.94, 43,050.72 and 7,923.44

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Solution

The fourth proportional to 28,699.94, 43,050.72 and 7,923.44 is: 11,885.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,699.94 : 43,050.72 = 7,923.44 : x
  2. Step 2: Convert to fraction form
    28,699.94/43,050.72 = 7,923.44/x
  3. Step 3: Cross multiply
    28,699.94x = 43,050.72 × 7,923.44
  4. Step 4: Simplify right side
    28,699.94x = 341,109,796.88
  5. Step 5: Solve for x
    x = 341,109,796.88/28,699.94
  6. Step 6: Final answer
    x = 11,885.38

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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.