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Finding the Fourth Proportional to 18,855.24, 25,960.60 and 14,364.60

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Solution

The fourth proportional to 18,855.24, 25,960.60 and 14,364.60 is: 19,777.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,855.24 : 25,960.60 = 14,364.60 : x
  2. Step 2: Convert to fraction form
    18,855.24/25,960.60 = 14,364.60/x
  3. Step 3: Cross multiply
    18,855.24x = 25,960.60 × 14,364.60
  4. Step 4: Simplify right side
    18,855.24x = 372,913,634.76
  5. Step 5: Solve for x
    x = 372,913,634.76/18,855.24
  6. Step 6: Final answer
    x = 19,777.72

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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.