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Finding the Fourth Proportional to 11,790.90, 17,671.77 and 5,944.32

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Solution

The fourth proportional to 11,790.90, 17,671.77 and 5,944.32 is: 8,909.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,790.90 : 17,671.77 = 5,944.32 : x
  2. Step 2: Convert to fraction form
    11,790.90/17,671.77 = 5,944.32/x
  3. Step 3: Cross multiply
    11,790.90x = 17,671.77 × 5,944.32
  4. Step 4: Simplify right side
    11,790.90x = 105,046,655.85
  5. Step 5: Solve for x
    x = 105,046,655.85/11,790.90
  6. Step 6: Final answer
    x = 8,909.13

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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.