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Finding the Fourth Proportional to 25,760.99, 38,609.19 and 13,914.29

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Solution

The fourth proportional to 25,760.99, 38,609.19 and 13,914.29 is: 20,853.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,760.99 : 38,609.19 = 13,914.29 : x
  2. Step 2: Convert to fraction form
    25,760.99/38,609.19 = 13,914.29/x
  3. Step 3: Cross multiply
    25,760.99x = 38,609.19 × 13,914.29
  4. Step 4: Simplify right side
    25,760.99x = 537,219,273.28
  5. Step 5: Solve for x
    x = 537,219,273.28/25,760.99
  6. Step 6: Final answer
    x = 20,853.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.