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Finding the Fourth Proportional to 25,836.70, 38,755.04 and 7,116.92

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Solution

The fourth proportional to 25,836.70, 38,755.04 and 7,116.92 is: 10,675.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,836.70 : 38,755.04 = 7,116.92 : x
  2. Step 2: Convert to fraction form
    25,836.70/38,755.04 = 7,116.92/x
  3. Step 3: Cross multiply
    25,836.70x = 38,755.04 × 7,116.92
  4. Step 4: Simplify right side
    25,836.70x = 275,816,532.56
  5. Step 5: Solve for x
    x = 275,816,532.56/25,836.70
  6. Step 6: Final answer
    x = 10,675.38

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Double scale
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Similar ratio
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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.