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Finding the Fourth Proportional to 26,608.96, 39,891.80 and 9,959.66

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Solution

The fourth proportional to 26,608.96, 39,891.80 and 9,959.66 is: 14,931.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,608.96 : 39,891.80 = 9,959.66 : x
  2. Step 2: Convert to fraction form
    26,608.96/39,891.80 = 9,959.66/x
  3. Step 3: Cross multiply
    26,608.96x = 39,891.80 × 9,959.66
  4. Step 4: Simplify right side
    26,608.96x = 397,308,908.19
  5. Step 5: Solve for x
    x = 397,308,908.19/26,608.96
  6. Step 6: Final answer
    x = 14,931.39

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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.