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Finding the Fourth Proportional to 64,937.87, 89,613.88 and 36,255.87

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Solution

The fourth proportional to 64,937.87, 89,613.88 and 36,255.87 is: 50,032.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,937.87 : 89,613.88 = 36,255.87 : x
  2. Step 2: Convert to fraction form
    64,937.87/89,613.88 = 36,255.87/x
  3. Step 3: Cross multiply
    64,937.87x = 89,613.88 × 36,255.87
  4. Step 4: Simplify right side
    64,937.87x = 3,249,029,092.84
  5. Step 5: Solve for x
    x = 3,249,029,092.84/64,937.87
  6. Step 6: Final answer
    x = 50,032.89

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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.