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Finding the Fourth Proportional to 64,681.44, 89,260.02 and 36,387.36

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Solution

The fourth proportional to 64,681.44, 89,260.02 and 36,387.36 is: 50,214.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,681.44 : 89,260.02 = 36,387.36 : x
  2. Step 2: Convert to fraction form
    64,681.44/89,260.02 = 36,387.36/x
  3. Step 3: Cross multiply
    64,681.44x = 89,260.02 × 36,387.36
  4. Step 4: Simplify right side
    64,681.44x = 3,247,936,481.35
  5. Step 5: Solve for x
    x = 3,247,936,481.35/64,681.44
  6. Step 6: Final answer
    x = 50,214.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.