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Finding the Fourth Proportional to 18,573.24, 25,631.48 and 10,189.76

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Solution

The fourth proportional to 18,573.24, 25,631.48 and 10,189.76 is: 14,062.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,573.24 : 25,631.48 = 10,189.76 : x
  2. Step 2: Convert to fraction form
    18,573.24/25,631.48 = 10,189.76/x
  3. Step 3: Cross multiply
    18,573.24x = 25,631.48 × 10,189.76
  4. Step 4: Simplify right side
    18,573.24x = 261,178,629.64
  5. Step 5: Solve for x
    x = 261,178,629.64/18,573.24
  6. Step 6: Final answer
    x = 14,062.09

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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.