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Finding the Fourth Proportional to 26,656.58, 39,971.50 and 8,881

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Solution

The fourth proportional to 26,656.58, 39,971.50 and 8,881 is: 13,317.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,656.58 : 39,971.50 = 8,881 : x
  2. Step 2: Convert to fraction form
    26,656.58/39,971.50 = 8,881/x
  3. Step 3: Cross multiply
    26,656.58x = 39,971.50 × 8,881
  4. Step 4: Simplify right side
    26,656.58x = 354,986,891.50
  5. Step 5: Solve for x
    x = 354,986,891.50/26,656.58
  6. Step 6: Final answer
    x = 13,317.05

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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.