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Finding the Fourth Proportional to 64,028.80, 96,043.20 and 36,035.20

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Solution

The fourth proportional to 64,028.80, 96,043.20 and 36,035.20 is: 54,052.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,028.80 : 96,043.20 = 36,035.20 : x
  2. Step 2: Convert to fraction form
    64,028.80/96,043.20 = 36,035.20/x
  3. Step 3: Cross multiply
    64,028.80x = 96,043.20 × 36,035.20
  4. Step 4: Simplify right side
    64,028.80x = 3,460,935,920.64
  5. Step 5: Solve for x
    x = 3,460,935,920.64/64,028.80
  6. Step 6: Final answer
    x = 54,052.80

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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.