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Finding the Fourth Proportional to 64,997.36, 97,510.44 and 20,626.64

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Solution

The fourth proportional to 64,997.36, 97,510.44 and 20,626.64 is: 30,944.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,997.36 : 97,510.44 = 20,626.64 : x
  2. Step 2: Convert to fraction form
    64,997.36/97,510.44 = 20,626.64/x
  3. Step 3: Cross multiply
    64,997.36x = 97,510.44 × 20,626.64
  4. Step 4: Simplify right side
    64,997.36x = 2,011,312,742.12
  5. Step 5: Solve for x
    x = 2,011,312,742.12/64,997.36
  6. Step 6: Final answer
    x = 30,944.53

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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.