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Finding the Fourth Proportional to 52,957.98, 79,446.75 and 17,421.30

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Solution

The fourth proportional to 52,957.98, 79,446.75 and 17,421.30 is: 26,135.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,957.98 : 79,446.75 = 17,421.30 : x
  2. Step 2: Convert to fraction form
    52,957.98/79,446.75 = 17,421.30/x
  3. Step 3: Cross multiply
    52,957.98x = 79,446.75 × 17,421.30
  4. Step 4: Simplify right side
    52,957.98x = 1,384,065,665.78
  5. Step 5: Solve for x
    x = 1,384,065,665.78/52,957.98
  6. Step 6: Final answer
    x = 26,135.17

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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.