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Finding the Fourth Proportional to 26,246.88, 39,361.82 and 8,712

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Solution

The fourth proportional to 26,246.88, 39,361.82 and 8,712 is: 13,065.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,246.88 : 39,361.82 = 8,712 : x
  2. Step 2: Convert to fraction form
    26,246.88/39,361.82 = 8,712/x
  3. Step 3: Cross multiply
    26,246.88x = 39,361.82 × 8,712
  4. Step 4: Simplify right side
    26,246.88x = 342,920,132.28
  5. Step 5: Solve for x
    x = 342,920,132.28/26,246.88
  6. Step 6: Final answer
    x = 13,065.18

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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.