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Finding the Fourth Proportional to 5,261.65, 7,890.75 and 1,750.73

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Solution

The fourth proportional to 5,261.65, 7,890.75 and 1,750.73 is: 2,625.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.65 : 7,890.75 = 1,750.73 : x
  2. Step 2: Convert to fraction form
    5,261.65/7,890.75 = 1,750.73/x
  3. Step 3: Cross multiply
    5,261.65x = 7,890.75 × 1,750.73
  4. Step 4: Simplify right side
    5,261.65x = 13,814,533.29
  5. Step 5: Solve for x
    x = 13,814,533.29/5,261.65
  6. Step 6: Final answer
    x = 2,625.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.