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Finding the Fourth Proportional to 27,039.72, 40,561.96 and 9,509.68

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Solution

The fourth proportional to 27,039.72, 40,561.96 and 9,509.68 is: 14,265.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,039.72 : 40,561.96 = 9,509.68 : x
  2. Step 2: Convert to fraction form
    27,039.72/40,561.96 = 9,509.68/x
  3. Step 3: Cross multiply
    27,039.72x = 40,561.96 × 9,509.68
  4. Step 4: Simplify right side
    27,039.72x = 385,731,259.77
  5. Step 5: Solve for x
    x = 385,731,259.77/27,039.72
  6. Step 6: Final answer
    x = 14,265.36

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.