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Finding the Fourth Proportional to 4,983.16, 7,475.40 and 2,644.36

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Solution

The fourth proportional to 4,983.16, 7,475.40 and 2,644.36 is: 3,966.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,983.16 : 7,475.40 = 2,644.36 : x
  2. Step 2: Convert to fraction form
    4,983.16/7,475.40 = 2,644.36/x
  3. Step 3: Cross multiply
    4,983.16x = 7,475.40 × 2,644.36
  4. Step 4: Simplify right side
    4,983.16x = 19,767,648.74
  5. Step 5: Solve for x
    x = 19,767,648.74/4,983.16
  6. Step 6: Final answer
    x = 3,966.89

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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.