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Finding the Fourth Proportional to 19,792.72, 27,313.99 and 10,718.18

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Solution

The fourth proportional to 19,792.72, 27,313.99 and 10,718.18 is: 14,791.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,792.72 : 27,313.99 = 10,718.18 : x
  2. Step 2: Convert to fraction form
    19,792.72/27,313.99 = 10,718.18/x
  3. Step 3: Cross multiply
    19,792.72x = 27,313.99 × 10,718.18
  4. Step 4: Simplify right side
    19,792.72x = 292,756,261.34
  5. Step 5: Solve for x
    x = 292,756,261.34/19,792.72
  6. Step 6: Final answer
    x = 14,791.11

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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.