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Finding the Fourth Proportional to 64,845.03, 89,484.34 and 36,165.57

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Solution

The fourth proportional to 64,845.03, 89,484.34 and 36,165.57 is: 49,907.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,845.03 : 89,484.34 = 36,165.57 : x
  2. Step 2: Convert to fraction form
    64,845.03/89,484.34 = 36,165.57/x
  3. Step 3: Cross multiply
    64,845.03x = 89,484.34 × 36,165.57
  4. Step 4: Simplify right side
    64,845.03x = 3,236,252,162.17
  5. Step 5: Solve for x
    x = 3,236,252,162.17/64,845.03
  6. Step 6: Final answer
    x = 49,907.48

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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.