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Finding the Fourth Proportional to 13,782.81, 19,020.42 and 7,495.32

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Solution

The fourth proportional to 13,782.81, 19,020.42 and 7,495.32 is: 10,343.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,782.81 : 19,020.42 = 7,495.32 : x
  2. Step 2: Convert to fraction form
    13,782.81/19,020.42 = 7,495.32/x
  3. Step 3: Cross multiply
    13,782.81x = 19,020.42 × 7,495.32
  4. Step 4: Simplify right side
    13,782.81x = 142,564,134.43
  5. Step 5: Solve for x
    x = 142,564,134.43/13,782.81
  6. Step 6: Final answer
    x = 10,343.62

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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.