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Finding the Fourth Proportional to 39,279.64, 59,017.88 and 36,917.68

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Solution

The fourth proportional to 39,279.64, 59,017.88 and 36,917.68 is: 55,469.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,279.64 : 59,017.88 = 36,917.68 : x
  2. Step 2: Convert to fraction form
    39,279.64/59,017.88 = 36,917.68/x
  3. Step 3: Cross multiply
    39,279.64x = 59,017.88 × 36,917.68
  4. Step 4: Simplify right side
    39,279.64x = 2,178,803,208.12
  5. Step 5: Solve for x
    x = 2,178,803,208.12/39,279.64
  6. Step 6: Final answer
    x = 55,469.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.