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Finding the Fourth Proportional to 26,437.50, 39,656.28 and 7,969.50

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Solution

The fourth proportional to 26,437.50, 39,656.28 and 7,969.50 is: 11,954.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,437.50 : 39,656.28 = 7,969.50 : x
  2. Step 2: Convert to fraction form
    26,437.50/39,656.28 = 7,969.50/x
  3. Step 3: Cross multiply
    26,437.50x = 39,656.28 × 7,969.50
  4. Step 4: Simplify right side
    26,437.50x = 316,040,723.46
  5. Step 5: Solve for x
    x = 316,040,723.46/26,437.50
  6. Step 6: Final answer
    x = 11,954.26

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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.