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Finding the Fourth Proportional to 65,018.54, 97,539.92 and 20,633.33

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Solution

The fourth proportional to 65,018.54, 97,539.92 and 20,633.33 is: 30,953.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,018.54 : 97,539.92 = 20,633.33 : x
  2. Step 2: Convert to fraction form
    65,018.54/97,539.92 = 20,633.33/x
  3. Step 3: Cross multiply
    65,018.54x = 97,539.92 × 20,633.33
  4. Step 4: Simplify right side
    65,018.54x = 2,012,572,766.67
  5. Step 5: Solve for x
    x = 2,012,572,766.67/65,018.54
  6. Step 6: Final answer
    x = 30,953.83

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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.