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Finding the Fourth Proportional to 64,809.92, 97,219.68 and 22,685.36

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Solution

The fourth proportional to 64,809.92, 97,219.68 and 22,685.36 is: 34,029.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,809.92 : 97,219.68 = 22,685.36 : x
  2. Step 2: Convert to fraction form
    64,809.92/97,219.68 = 22,685.36/x
  3. Step 3: Cross multiply
    64,809.92x = 97,219.68 × 22,685.36
  4. Step 4: Simplify right side
    64,809.92x = 2,205,463,439.88
  5. Step 5: Solve for x
    x = 2,205,463,439.88/64,809.92
  6. Step 6: Final answer
    x = 34,029.72

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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.