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Finding the Fourth Proportional to 64,471.62, 96,707.46 and 20,101.95

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Solution

The fourth proportional to 64,471.62, 96,707.46 and 20,101.95 is: 30,152.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,471.62 : 96,707.46 = 20,101.95 : x
  2. Step 2: Convert to fraction form
    64,471.62/96,707.46 = 20,101.95/x
  3. Step 3: Cross multiply
    64,471.62x = 96,707.46 × 20,101.95
  4. Step 4: Simplify right side
    64,471.62x = 1,944,008,525.55
  5. Step 5: Solve for x
    x = 1,944,008,525.55/64,471.62
  6. Step 6: Final answer
    x = 30,152.93

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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.