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Finding the Fourth Proportional to 26,898.60, 40,251.90 and 17,042.60

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Solution

The fourth proportional to 26,898.60, 40,251.90 and 17,042.60 is: 25,503.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,898.60 : 40,251.90 = 17,042.60 : x
  2. Step 2: Convert to fraction form
    26,898.60/40,251.90 = 17,042.60/x
  3. Step 3: Cross multiply
    26,898.60x = 40,251.90 × 17,042.60
  4. Step 4: Simplify right side
    26,898.60x = 685,997,030.94
  5. Step 5: Solve for x
    x = 685,997,030.94/26,898.60
  6. Step 6: Final answer
    x = 25,503.08

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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.