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Finding the Fourth Proportional to 64,581.92, 96,872.26 and 38,267.72

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Solution

The fourth proportional to 64,581.92, 96,872.26 and 38,267.72 is: 57,401.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,581.92 : 96,872.26 = 38,267.72 : x
  2. Step 2: Convert to fraction form
    64,581.92/96,872.26 = 38,267.72/x
  3. Step 3: Cross multiply
    64,581.92x = 96,872.26 × 38,267.72
  4. Step 4: Simplify right side
    64,581.92x = 3,707,080,521.45
  5. Step 5: Solve for x
    x = 3,707,080,521.45/64,581.92
  6. Step 6: Final answer
    x = 57,401.21

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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.