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Finding the Fourth Proportional to 52,700.60, 79,042.62 and 17,163.20

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Solution

The fourth proportional to 52,700.60, 79,042.62 and 17,163.20 is: 25,742.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,700.60 : 79,042.62 = 17,163.20 : x
  2. Step 2: Convert to fraction form
    52,700.60/79,042.62 = 17,163.20/x
  3. Step 3: Cross multiply
    52,700.60x = 79,042.62 × 17,163.20
  4. Step 4: Simplify right side
    52,700.60x = 1,356,624,295.58
  5. Step 5: Solve for x
    x = 1,356,624,295.58/52,700.60
  6. Step 6: Final answer
    x = 25,742.10

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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.