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Finding the Fourth Proportional to 64,555.39, 89,078.61 and 35,874.91

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Solution

The fourth proportional to 64,555.39, 89,078.61 and 35,874.91 is: 49,503.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,555.39 : 89,078.61 = 35,874.91 : x
  2. Step 2: Convert to fraction form
    64,555.39/89,078.61 = 35,874.91/x
  3. Step 3: Cross multiply
    64,555.39x = 89,078.61 × 35,874.91
  4. Step 4: Simplify right side
    64,555.39x = 3,195,687,116.68
  5. Step 5: Solve for x
    x = 3,195,687,116.68/64,555.39
  6. Step 6: Final answer
    x = 49,503.03

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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.