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Finding the Fourth Proportional to 54,930.34, 82,410.90 and 15,487.66

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Solution

The fourth proportional to 54,930.34, 82,410.90 and 15,487.66 is: 23,235.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,930.34 : 82,410.90 = 15,487.66 : x
  2. Step 2: Convert to fraction form
    54,930.34/82,410.90 = 15,487.66/x
  3. Step 3: Cross multiply
    54,930.34x = 82,410.90 × 15,487.66
  4. Step 4: Simplify right side
    54,930.34x = 1,276,351,999.49
  5. Step 5: Solve for x
    x = 1,276,351,999.49/54,930.34
  6. Step 6: Final answer
    x = 23,235.83

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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.