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Finding the Fourth Proportional to 64,287.26, 88,719.31 and 35,992.95

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Solution

The fourth proportional to 64,287.26, 88,719.31 and 35,992.95 is: 49,671.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,287.26 : 88,719.31 = 35,992.95 : x
  2. Step 2: Convert to fraction form
    64,287.26/88,719.31 = 35,992.95/x
  3. Step 3: Cross multiply
    64,287.26x = 88,719.31 × 35,992.95
  4. Step 4: Simplify right side
    64,287.26x = 3,193,269,688.86
  5. Step 5: Solve for x
    x = 3,193,269,688.86/64,287.26
  6. Step 6: Final answer
    x = 49,671.89

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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.