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Finding the Fourth Proportional to 64,991.81, 97,487.73 and 23,438.81

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Solution

The fourth proportional to 64,991.81, 97,487.73 and 23,438.81 is: 35,158.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,991.81 : 97,487.73 = 23,438.81 : x
  2. Step 2: Convert to fraction form
    64,991.81/97,487.73 = 23,438.81/x
  3. Step 3: Cross multiply
    64,991.81x = 97,487.73 × 23,438.81
  4. Step 4: Simplify right side
    64,991.81x = 2,284,996,624.52
  5. Step 5: Solve for x
    x = 2,284,996,624.52/64,991.81
  6. Step 6: Final answer
    x = 35,158.22

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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.