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Finding the Fourth Proportional to 54,672.10, 82,008.15 and 36,009.70

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Solution

The fourth proportional to 54,672.10, 82,008.15 and 36,009.70 is: 54,014.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,672.10 : 82,008.15 = 36,009.70 : x
  2. Step 2: Convert to fraction form
    54,672.10/82,008.15 = 36,009.70/x
  3. Step 3: Cross multiply
    54,672.10x = 82,008.15 × 36,009.70
  4. Step 4: Simplify right side
    54,672.10x = 2,953,088,879.06
  5. Step 5: Solve for x
    x = 2,953,088,879.06/54,672.10
  6. Step 6: Final answer
    x = 54,014.55

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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.