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Finding the Fourth Proportional to 64,220.86, 96,331.43 and 34,652.62

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Solution

The fourth proportional to 64,220.86, 96,331.43 and 34,652.62 is: 51,979.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,220.86 : 96,331.43 = 34,652.62 : x
  2. Step 2: Convert to fraction form
    64,220.86/96,331.43 = 34,652.62/x
  3. Step 3: Cross multiply
    64,220.86x = 96,331.43 × 34,652.62
  4. Step 4: Simplify right side
    64,220.86x = 3,338,136,437.85
  5. Step 5: Solve for x
    x = 3,338,136,437.85/64,220.86
  6. Step 6: Final answer
    x = 51,979.01

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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.