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Finding the Fourth Proportional to 64,319.86, 88,765.50 and 36,027.28

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Solution

The fourth proportional to 64,319.86, 88,765.50 and 36,027.28 is: 49,719.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,319.86 : 88,765.50 = 36,027.28 : x
  2. Step 2: Convert to fraction form
    64,319.86/88,765.50 = 36,027.28/x
  3. Step 3: Cross multiply
    64,319.86x = 88,765.50 × 36,027.28
  4. Step 4: Simplify right side
    64,319.86x = 3,197,979,522.84
  5. Step 5: Solve for x
    x = 3,197,979,522.84/64,319.86
  6. Step 6: Final answer
    x = 49,719.94

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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.