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Finding the Fourth Proportional to 38,721, 58,100.94 and 17,950.44

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Solution

The fourth proportional to 38,721, 58,100.94 and 17,950.44 is: 26,934.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,721 : 58,100.94 = 17,950.44 : x
  2. Step 2: Convert to fraction form
    38,721/58,100.94 = 17,950.44/x
  3. Step 3: Cross multiply
    38,721x = 58,100.94 × 17,950.44
  4. Step 4: Simplify right side
    38,721x = 1,042,937,437.41
  5. Step 5: Solve for x
    x = 1,042,937,437.41/38,721
  6. Step 6: Final answer
    x = 26,934.67

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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.