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Finding the Fourth Proportional to 64,864.80, 97,161.84 and 33,605.28

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Solution

The fourth proportional to 64,864.80, 97,161.84 and 33,605.28 is: 50,337.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,864.80 : 97,161.84 = 33,605.28 : x
  2. Step 2: Convert to fraction form
    64,864.80/97,161.84 = 33,605.28/x
  3. Step 3: Cross multiply
    64,864.80x = 97,161.84 × 33,605.28
  4. Step 4: Simplify right side
    64,864.80x = 3,265,150,838.52
  5. Step 5: Solve for x
    x = 3,265,150,838.52/64,864.80
  6. Step 6: Final answer
    x = 50,337.79

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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.