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Finding the Fourth Proportional to 64,363.82, 96,420.04 and 30,581.76

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Solution

The fourth proportional to 64,363.82, 96,420.04 and 30,581.76 is: 45,812.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,363.82 : 96,420.04 = 30,581.76 : x
  2. Step 2: Convert to fraction form
    64,363.82/96,420.04 = 30,581.76/x
  3. Step 3: Cross multiply
    64,363.82x = 96,420.04 × 30,581.76
  4. Step 4: Simplify right side
    64,363.82x = 2,948,694,622.42
  5. Step 5: Solve for x
    x = 2,948,694,622.42/64,363.82
  6. Step 6: Final answer
    x = 45,812.92

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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.