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Finding the Fourth Proportional to 64,073.81, 96,099.78 and 17,315.75

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Solution

The fourth proportional to 64,073.81, 96,099.78 and 17,315.75 is: 25,970.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,073.81 : 96,099.78 = 17,315.75 : x
  2. Step 2: Convert to fraction form
    64,073.81/96,099.78 = 17,315.75/x
  3. Step 3: Cross multiply
    64,073.81x = 96,099.78 × 17,315.75
  4. Step 4: Simplify right side
    64,073.81x = 1,664,039,765.54
  5. Step 5: Solve for x
    x = 1,664,039,765.54/64,073.81
  6. Step 6: Final answer
    x = 25,970.67

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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.