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Finding the Fourth Proportional to 65,958.01, 98,958.20 and 21,574.67

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Solution

The fourth proportional to 65,958.01, 98,958.20 and 21,574.67 is: 32,368.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,958.01 : 98,958.20 = 21,574.67 : x
  2. Step 2: Convert to fraction form
    65,958.01/98,958.20 = 21,574.67/x
  3. Step 3: Cross multiply
    65,958.01x = 98,958.20 × 21,574.67
  4. Step 4: Simplify right side
    65,958.01x = 2,134,990,067.94
  5. Step 5: Solve for x
    x = 2,134,990,067.94/65,958.01
  6. Step 6: Final answer
    x = 32,368.93

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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.