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Finding the Fourth Proportional to 34,748.70, 52,090.70 and 18,930.31

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Solution

The fourth proportional to 34,748.70, 52,090.70 and 18,930.31 is: 28,377.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,748.70 : 52,090.70 = 18,930.31 : x
  2. Step 2: Convert to fraction form
    34,748.70/52,090.70 = 18,930.31/x
  3. Step 3: Cross multiply
    34,748.70x = 52,090.70 × 18,930.31
  4. Step 4: Simplify right side
    34,748.70x = 986,092,874.24
  5. Step 5: Solve for x
    x = 986,092,874.24/34,748.70
  6. Step 6: Final answer
    x = 28,377.84

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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.