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Finding the Fourth Proportional to 38,009.76, 56,939.04 and 34,761.12

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Solution

The fourth proportional to 38,009.76, 56,939.04 and 34,761.12 is: 52,072.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,009.76 : 56,939.04 = 34,761.12 : x
  2. Step 2: Convert to fraction form
    38,009.76/56,939.04 = 34,761.12/x
  3. Step 3: Cross multiply
    38,009.76x = 56,939.04 × 34,761.12
  4. Step 4: Simplify right side
    38,009.76x = 1,979,264,802.12
  5. Step 5: Solve for x
    x = 1,979,264,802.12/38,009.76
  6. Step 6: Final answer
    x = 52,072.54

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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.