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Finding the Fourth Proportional to 18,673.83, 25,759.86 and 11,952.22

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Solution

The fourth proportional to 18,673.83, 25,759.86 and 11,952.22 is: 16,487.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,673.83 : 25,759.86 = 11,952.22 : x
  2. Step 2: Convert to fraction form
    18,673.83/25,759.86 = 11,952.22/x
  3. Step 3: Cross multiply
    18,673.83x = 25,759.86 × 11,952.22
  4. Step 4: Simplify right side
    18,673.83x = 307,887,513.89
  5. Step 5: Solve for x
    x = 307,887,513.89/18,673.83
  6. Step 6: Final answer
    x = 16,487.65

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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.