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Finding the Fourth Proportional to 18,570.96, 25,610.52 and 14,806.64

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Solution

The fourth proportional to 18,570.96, 25,610.52 and 14,806.64 is: 20,419.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,570.96 : 25,610.52 = 14,806.64 : x
  2. Step 2: Convert to fraction form
    18,570.96/25,610.52 = 14,806.64/x
  3. Step 3: Cross multiply
    18,570.96x = 25,610.52 × 14,806.64
  4. Step 4: Simplify right side
    18,570.96x = 379,205,749.85
  5. Step 5: Solve for x
    x = 379,205,749.85/18,570.96
  6. Step 6: Final answer
    x = 20,419.29

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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.