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Finding the Fourth Proportional to 25,905.38, 38,848.34 and 8,370.50

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Solution

The fourth proportional to 25,905.38, 38,848.34 and 8,370.50 is: 12,552.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,905.38 : 38,848.34 = 8,370.50 : x
  2. Step 2: Convert to fraction form
    25,905.38/38,848.34 = 8,370.50/x
  3. Step 3: Cross multiply
    25,905.38x = 38,848.34 × 8,370.50
  4. Step 4: Simplify right side
    25,905.38x = 325,180,029.97
  5. Step 5: Solve for x
    x = 325,180,029.97/25,905.38
  6. Step 6: Final answer
    x = 12,552.61

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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.