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Finding the Fourth Proportional to 18,023.56, 24,850.02 and 13,779.88

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Solution

The fourth proportional to 18,023.56, 24,850.02 and 13,779.88 is: 18,999.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,023.56 : 24,850.02 = 13,779.88 : x
  2. Step 2: Convert to fraction form
    18,023.56/24,850.02 = 13,779.88/x
  3. Step 3: Cross multiply
    18,023.56x = 24,850.02 × 13,779.88
  4. Step 4: Simplify right side
    18,023.56x = 342,430,293.60
  5. Step 5: Solve for x
    x = 342,430,293.60/18,023.56
  6. Step 6: Final answer
    x = 18,999.04

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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.