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Finding the Fourth Proportional to 25,836.64, 38,755.87 and 8,304.19

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Solution

The fourth proportional to 25,836.64, 38,755.87 and 8,304.19 is: 12,456.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,836.64 : 38,755.87 = 8,304.19 : x
  2. Step 2: Convert to fraction form
    25,836.64/38,755.87 = 8,304.19/x
  3. Step 3: Cross multiply
    25,836.64x = 38,755.87 × 8,304.19
  4. Step 4: Simplify right side
    25,836.64x = 321,835,990.45
  5. Step 5: Solve for x
    x = 321,835,990.45/25,836.64
  6. Step 6: Final answer
    x = 12,456.57

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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.