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Finding the Fourth Proportional to 13,172.66, 19,749.76 and 4,851.60

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Solution

The fourth proportional to 13,172.66, 19,749.76 and 4,851.60 is: 7,273.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172.66 : 19,749.76 = 4,851.60 : x
  2. Step 2: Convert to fraction form
    13,172.66/19,749.76 = 4,851.60/x
  3. Step 3: Cross multiply
    13,172.66x = 19,749.76 × 4,851.60
  4. Step 4: Simplify right side
    13,172.66x = 95,817,849.43
  5. Step 5: Solve for x
    x = 95,817,849.43/13,172.66
  6. Step 6: Final answer
    x = 7,273.99

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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.