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Finding the Fourth Proportional to 16,999.60, 25,483.20 and 13,249.30

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Solution

The fourth proportional to 16,999.60, 25,483.20 and 13,249.30 is: 19,861.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,999.60 : 25,483.20 = 13,249.30 : x
  2. Step 2: Convert to fraction form
    16,999.60/25,483.20 = 13,249.30/x
  3. Step 3: Cross multiply
    16,999.60x = 25,483.20 × 13,249.30
  4. Step 4: Simplify right side
    16,999.60x = 337,634,561.76
  5. Step 5: Solve for x
    x = 337,634,561.76/16,999.60
  6. Step 6: Final answer
    x = 19,861.32

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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.