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Finding the Fourth Proportional to 13,696.13, 20,531.86 and 4,924.88

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Solution

The fourth proportional to 13,696.13, 20,531.86 and 4,924.88 is: 7,382.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,696.13 : 20,531.86 = 4,924.88 : x
  2. Step 2: Convert to fraction form
    13,696.13/20,531.86 = 4,924.88/x
  3. Step 3: Cross multiply
    13,696.13x = 20,531.86 × 4,924.88
  4. Step 4: Simplify right side
    13,696.13x = 101,116,831.71
  5. Step 5: Solve for x
    x = 101,116,831.71/13,696.13
  6. Step 6: Final answer
    x = 7,382.88

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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.