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Finding the Fourth Proportional to 38,750.93, 58,072.25 and 20,943.20

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Solution

The fourth proportional to 38,750.93, 58,072.25 and 20,943.20 is: 31,385.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,750.93 : 58,072.25 = 20,943.20 : x
  2. Step 2: Convert to fraction form
    38,750.93/58,072.25 = 20,943.20/x
  3. Step 3: Cross multiply
    38,750.93x = 58,072.25 × 20,943.20
  4. Step 4: Simplify right side
    38,750.93x = 1,216,218,746.20
  5. Step 5: Solve for x
    x = 1,216,218,746.20/38,750.93
  6. Step 6: Final answer
    x = 31,385.54

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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.