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Finding the Fourth Proportional to 64,967.88, 89,653.86 and 36,676.20

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Solution

The fourth proportional to 64,967.88, 89,653.86 and 36,676.20 is: 50,612.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,967.88 : 89,653.86 = 36,676.20 : x
  2. Step 2: Convert to fraction form
    64,967.88/89,653.86 = 36,676.20/x
  3. Step 3: Cross multiply
    64,967.88x = 89,653.86 × 36,676.20
  4. Step 4: Simplify right side
    64,967.88x = 3,288,162,900.13
  5. Step 5: Solve for x
    x = 3,288,162,900.13/64,967.88
  6. Step 6: Final answer
    x = 50,612.13

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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.