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Finding the Fourth Proportional to 4,871.61, 7,305.84 and 1,583.91

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Solution

The fourth proportional to 4,871.61, 7,305.84 and 1,583.91 is: 2,375.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,871.61 : 7,305.84 = 1,583.91 : x
  2. Step 2: Convert to fraction form
    4,871.61/7,305.84 = 1,583.91/x
  3. Step 3: Cross multiply
    4,871.61x = 7,305.84 × 1,583.91
  4. Step 4: Simplify right side
    4,871.61x = 11,571,793.03
  5. Step 5: Solve for x
    x = 11,571,793.03/4,871.61
  6. Step 6: Final answer
    x = 2,375.35

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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.