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Finding the Fourth Proportional to 26,252.88, 39,370.80 and 8,718

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Solution

The fourth proportional to 26,252.88, 39,370.80 and 8,718 is: 13,074.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,252.88 : 39,370.80 = 8,718 : x
  2. Step 2: Convert to fraction form
    26,252.88/39,370.80 = 8,718/x
  3. Step 3: Cross multiply
    26,252.88x = 39,370.80 × 8,718
  4. Step 4: Simplify right side
    26,252.88x = 343,234,634.40
  5. Step 5: Solve for x
    x = 343,234,634.40/26,252.88
  6. Step 6: Final answer
    x = 13,074.17

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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.