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Finding the Fourth Proportional to 1,652.48, 2,479.10 and 959.73

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Solution

The fourth proportional to 1,652.48, 2,479.10 and 959.73 is: 1,439.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,652.48 : 2,479.10 = 959.73 : x
  2. Step 2: Convert to fraction form
    1,652.48/2,479.10 = 959.73/x
  3. Step 3: Cross multiply
    1,652.48x = 2,479.10 × 959.73
  4. Step 4: Simplify right side
    1,652.48x = 2,379,266.64
  5. Step 5: Solve for x
    x = 2,379,266.64/1,652.48
  6. Step 6: Final answer
    x = 1,439.82

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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.