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Finding the Fourth Proportional to 26,956.30, 40,470.90 and 17,114.80

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Solution

The fourth proportional to 26,956.30, 40,470.90 and 17,114.80 is: 25,695.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,956.30 : 40,470.90 = 17,114.80 : x
  2. Step 2: Convert to fraction form
    26,956.30/40,470.90 = 17,114.80/x
  3. Step 3: Cross multiply
    26,956.30x = 40,470.90 × 17,114.80
  4. Step 4: Simplify right side
    26,956.30x = 692,651,359.32
  5. Step 5: Solve for x
    x = 692,651,359.32/26,956.30
  6. Step 6: Final answer
    x = 25,695.34

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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.