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Finding the Fourth Proportional to 38,065.70, 57,100.17 and 11,770.94

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Solution

The fourth proportional to 38,065.70, 57,100.17 and 11,770.94 is: 17,656.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,065.70 : 57,100.17 = 11,770.94 : x
  2. Step 2: Convert to fraction form
    38,065.70/57,100.17 = 11,770.94/x
  3. Step 3: Cross multiply
    38,065.70x = 57,100.17 × 11,770.94
  4. Step 4: Simplify right side
    38,065.70x = 672,122,675.06
  5. Step 5: Solve for x
    x = 672,122,675.06/38,065.70
  6. Step 6: Final answer
    x = 17,656.91

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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.