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Finding the Fourth Proportional to 52,700.60, 79,054.92 and 17,640.32

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Solution

The fourth proportional to 52,700.60, 79,054.92 and 17,640.32 is: 26,461.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,700.60 : 79,054.92 = 17,640.32 : x
  2. Step 2: Convert to fraction form
    52,700.60/79,054.92 = 17,640.32/x
  3. Step 3: Cross multiply
    52,700.60x = 79,054.92 × 17,640.32
  4. Step 4: Simplify right side
    52,700.60x = 1,394,554,086.37
  5. Step 5: Solve for x
    x = 1,394,554,086.37/52,700.60
  6. Step 6: Final answer
    x = 26,461.83

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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.