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Finding the Fourth Proportional to 7,487.52, 11,231.20 and 2,870.52

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Solution

The fourth proportional to 7,487.52, 11,231.20 and 2,870.52 is: 4,305.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,487.52 : 11,231.20 = 2,870.52 : x
  2. Step 2: Convert to fraction form
    7,487.52/11,231.20 = 2,870.52/x
  3. Step 3: Cross multiply
    7,487.52x = 11,231.20 × 2,870.52
  4. Step 4: Simplify right side
    7,487.52x = 32,239,384.22
  5. Step 5: Solve for x
    x = 32,239,384.22/7,487.52
  6. Step 6: Final answer
    x = 4,305.75

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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.