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Finding the Fourth Proportional to 18,332.43, 25,311.60 and 16,191.60

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Solution

The fourth proportional to 18,332.43, 25,311.60 and 16,191.60 is: 22,355.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,332.43 : 25,311.60 = 16,191.60 : x
  2. Step 2: Convert to fraction form
    18,332.43/25,311.60 = 16,191.60/x
  3. Step 3: Cross multiply
    18,332.43x = 25,311.60 × 16,191.60
  4. Step 4: Simplify right side
    18,332.43x = 409,835,302.56
  5. Step 5: Solve for x
    x = 409,835,302.56/18,332.43
  6. Step 6: Final answer
    x = 22,355.75

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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.