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Finding the Fourth Proportional to 18,363.60, 25,341.80 and 10,408.37

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Solution

The fourth proportional to 18,363.60, 25,341.80 and 10,408.37 is: 14,363.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,363.60 : 25,341.80 = 10,408.37 : x
  2. Step 2: Convert to fraction form
    18,363.60/25,341.80 = 10,408.37/x
  3. Step 3: Cross multiply
    18,363.60x = 25,341.80 × 10,408.37
  4. Step 4: Simplify right side
    18,363.60x = 263,766,652.12
  5. Step 5: Solve for x
    x = 263,766,652.12/18,363.60
  6. Step 6: Final answer
    x = 14,363.56

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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.