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Finding the Fourth Proportional to 64,322.25, 88,764.71 and 36,028.55

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Solution

The fourth proportional to 64,322.25, 88,764.71 and 36,028.55 is: 49,719.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,322.25 : 88,764.71 = 36,028.55 : x
  2. Step 2: Convert to fraction form
    64,322.25/88,764.71 = 36,028.55/x
  3. Step 3: Cross multiply
    64,322.25x = 88,764.71 × 36,028.55
  4. Step 4: Simplify right side
    64,322.25x = 3,198,063,168.50
  5. Step 5: Solve for x
    x = 3,198,063,168.50/64,322.25
  6. Step 6: Final answer
    x = 49,719.39

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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.