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Finding the Fourth Proportional to 18,760.56, 25,888.50 and 10,260.98

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Solution

The fourth proportional to 18,760.56, 25,888.50 and 10,260.98 is: 14,159.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,760.56 : 25,888.50 = 10,260.98 : x
  2. Step 2: Convert to fraction form
    18,760.56/25,888.50 = 10,260.98/x
  3. Step 3: Cross multiply
    18,760.56x = 25,888.50 × 10,260.98
  4. Step 4: Simplify right side
    18,760.56x = 265,641,380.73
  5. Step 5: Solve for x
    x = 265,641,380.73/18,760.56
  6. Step 6: Final answer
    x = 14,159.57

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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.