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Finding the Fourth Proportional to 18,091.58, 24,978.58 and 11,295.96

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Solution

The fourth proportional to 18,091.58, 24,978.58 and 11,295.96 is: 15,596.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,091.58 : 24,978.58 = 11,295.96 : x
  2. Step 2: Convert to fraction form
    18,091.58/24,978.58 = 11,295.96/x
  3. Step 3: Cross multiply
    18,091.58x = 24,978.58 × 11,295.96
  4. Step 4: Simplify right side
    18,091.58x = 282,157,040.54
  5. Step 5: Solve for x
    x = 282,157,040.54/18,091.58
  6. Step 6: Final answer
    x = 15,596.04

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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.