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Finding the Fourth Proportional to 19,792.76, 27,313.80 and 10,840.28

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Solution

The fourth proportional to 19,792.76, 27,313.80 and 10,840.28 is: 14,959.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,792.76 : 27,313.80 = 10,840.28 : x
  2. Step 2: Convert to fraction form
    19,792.76/27,313.80 = 10,840.28/x
  3. Step 3: Cross multiply
    19,792.76x = 27,313.80 × 10,840.28
  4. Step 4: Simplify right side
    19,792.76x = 296,089,239.86
  5. Step 5: Solve for x
    x = 296,089,239.86/19,792.76
  6. Step 6: Final answer
    x = 14,959.47

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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.