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Finding the Fourth Proportional to 65,021.88, 97,536.19 and 20,652.11

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Solution

The fourth proportional to 65,021.88, 97,536.19 and 20,652.11 is: 30,979.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,021.88 : 97,536.19 = 20,652.11 : x
  2. Step 2: Convert to fraction form
    65,021.88/97,536.19 = 20,652.11/x
  3. Step 3: Cross multiply
    65,021.88x = 97,536.19 × 20,652.11
  4. Step 4: Simplify right side
    65,021.88x = 2,014,327,585.55
  5. Step 5: Solve for x
    x = 2,014,327,585.55/65,021.88
  6. Step 6: Final answer
    x = 30,979.23

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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.