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Finding the Fourth Proportional to 65,847.72, 98,774.76 and 21,474.42

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Solution

The fourth proportional to 65,847.72, 98,774.76 and 21,474.42 is: 32,212.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,847.72 : 98,774.76 = 21,474.42 : x
  2. Step 2: Convert to fraction form
    65,847.72/98,774.76 = 21,474.42/x
  3. Step 3: Cross multiply
    65,847.72x = 98,774.76 × 21,474.42
  4. Step 4: Simplify right side
    65,847.72x = 2,121,130,681.64
  5. Step 5: Solve for x
    x = 2,121,130,681.64/65,847.72
  6. Step 6: Final answer
    x = 32,212.67

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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.