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Finding the Fourth Proportional to 25,674.58, 38,512.95 and 12,538.54

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Solution

The fourth proportional to 25,674.58, 38,512.95 and 12,538.54 is: 18,808.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,674.58 : 38,512.95 = 12,538.54 : x
  2. Step 2: Convert to fraction form
    25,674.58/38,512.95 = 12,538.54/x
  3. Step 3: Cross multiply
    25,674.58x = 38,512.95 × 12,538.54
  4. Step 4: Simplify right side
    25,674.58x = 482,896,164.09
  5. Step 5: Solve for x
    x = 482,896,164.09/25,674.58
  6. Step 6: Final answer
    x = 18,808.34

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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.