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Finding the Fourth Proportional to 37,191.70, 51,324.49 and 20,424.70

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Solution

The fourth proportional to 37,191.70, 51,324.49 and 20,424.70 is: 28,186.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,191.70 : 51,324.49 = 20,424.70 : x
  2. Step 2: Convert to fraction form
    37,191.70/51,324.49 = 20,424.70/x
  3. Step 3: Cross multiply
    37,191.70x = 51,324.49 × 20,424.70
  4. Step 4: Simplify right side
    37,191.70x = 1,048,287,310.90
  5. Step 5: Solve for x
    x = 1,048,287,310.90/37,191.70
  6. Step 6: Final answer
    x = 28,186.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.