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Finding the Fourth Proportional to 64,410.70, 96,612 and 20,034.04

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Solution

The fourth proportional to 64,410.70, 96,612 and 20,034.04 is: 30,049.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,410.70 : 96,612 = 20,034.04 : x
  2. Step 2: Convert to fraction form
    64,410.70/96,612 = 20,034.04/x
  3. Step 3: Cross multiply
    64,410.70x = 96,612 × 20,034.04
  4. Step 4: Simplify right side
    64,410.70x = 1,935,528,672.48
  5. Step 5: Solve for x
    x = 1,935,528,672.48/64,410.70
  6. Step 6: Final answer
    x = 30,049.80

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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.