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Finding the Fourth Proportional to 7,791.51, 10,752.30 and 4,254.78

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Solution

The fourth proportional to 7,791.51, 10,752.30 and 4,254.78 is: 5,871.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,791.51 : 10,752.30 = 4,254.78 : x
  2. Step 2: Convert to fraction form
    7,791.51/10,752.30 = 4,254.78/x
  3. Step 3: Cross multiply
    7,791.51x = 10,752.30 × 4,254.78
  4. Step 4: Simplify right side
    7,791.51x = 45,748,670.99
  5. Step 5: Solve for x
    x = 45,748,670.99/7,791.51
  6. Step 6: Final answer
    x = 5,871.61

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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.