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Finding the Fourth Proportional to 7,515.77, 10,371.77 and 4,158.72

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Solution

The fourth proportional to 7,515.77, 10,371.77 and 4,158.72 is: 5,739.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.77 : 10,371.77 = 4,158.72 : x
  2. Step 2: Convert to fraction form
    7,515.77/10,371.77 = 4,158.72/x
  3. Step 3: Cross multiply
    7,515.77x = 10,371.77 × 4,158.72
  4. Step 4: Simplify right side
    7,515.77x = 43,133,266.54
  5. Step 5: Solve for x
    x = 43,133,266.54/7,515.77
  6. Step 6: Final answer
    x = 5,739.04

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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.