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Finding the Fourth Proportional to 15,039.20, 20,758.56 and 9,733.88

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Solution

The fourth proportional to 15,039.20, 20,758.56 and 9,733.88 is: 13,435.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,039.20 : 20,758.56 = 9,733.88 : x
  2. Step 2: Convert to fraction form
    15,039.20/20,758.56 = 9,733.88/x
  3. Step 3: Cross multiply
    15,039.20x = 20,758.56 × 9,733.88
  4. Step 4: Simplify right side
    15,039.20x = 202,061,332.01
  5. Step 5: Solve for x
    x = 202,061,332.01/15,039.20
  6. Step 6: Final answer
    x = 13,435.64

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.