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Finding the Fourth Proportional to 62,409.72, 93,595.14 and 20,847

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Solution

The fourth proportional to 62,409.72, 93,595.14 and 20,847 is: 31,264.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,409.72 : 93,595.14 = 20,847 : x
  2. Step 2: Convert to fraction form
    62,409.72/93,595.14 = 20,847/x
  3. Step 3: Cross multiply
    62,409.72x = 93,595.14 × 20,847
  4. Step 4: Simplify right side
    62,409.72x = 1,951,177,883.58
  5. Step 5: Solve for x
    x = 1,951,177,883.58/62,409.72
  6. Step 6: Final answer
    x = 31,264.01

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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.