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Finding the Fourth Proportional to 64,147.68, 96,197.60 and 22,015.81

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Solution

The fourth proportional to 64,147.68, 96,197.60 and 22,015.81 is: 33,015.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,147.68 : 96,197.60 = 22,015.81 : x
  2. Step 2: Convert to fraction form
    64,147.68/96,197.60 = 22,015.81/x
  3. Step 3: Cross multiply
    64,147.68x = 96,197.60 × 22,015.81
  4. Step 4: Simplify right side
    64,147.68x = 2,117,868,332.70
  5. Step 5: Solve for x
    x = 2,117,868,332.70/64,147.68
  6. Step 6: Final answer
    x = 33,015.51

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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.