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Finding the Fourth Proportional to 17,953.86, 24,779.73 and 11,893.38

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Solution

The fourth proportional to 17,953.86, 24,779.73 and 11,893.38 is: 16,415.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,953.86 : 24,779.73 = 11,893.38 : x
  2. Step 2: Convert to fraction form
    17,953.86/24,779.73 = 11,893.38/x
  3. Step 3: Cross multiply
    17,953.86x = 24,779.73 × 11,893.38
  4. Step 4: Simplify right side
    17,953.86x = 294,714,745.19
  5. Step 5: Solve for x
    x = 294,714,745.19/17,953.86
  6. Step 6: Final answer
    x = 16,415.12

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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.