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Finding the Fourth Proportional to 64,451.55, 96,654.21 and 22,320.32

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Solution

The fourth proportional to 64,451.55, 96,654.21 and 22,320.32 is: 33,472.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,451.55 : 96,654.21 = 22,320.32 : x
  2. Step 2: Convert to fraction form
    64,451.55/96,654.21 = 22,320.32/x
  3. Step 3: Cross multiply
    64,451.55x = 96,654.21 × 22,320.32
  4. Step 4: Simplify right side
    64,451.55x = 2,157,352,413.28
  5. Step 5: Solve for x
    x = 2,157,352,413.28/64,451.55
  6. Step 6: Final answer
    x = 33,472.47

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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.