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Finding the Fourth Proportional to 4,985.92, 7,473.56 and 2,644.46

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Solution

The fourth proportional to 4,985.92, 7,473.56 and 2,644.46 is: 3,963.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.92 : 7,473.56 = 2,644.46 : x
  2. Step 2: Convert to fraction form
    4,985.92/7,473.56 = 2,644.46/x
  3. Step 3: Cross multiply
    4,985.92x = 7,473.56 × 2,644.46
  4. Step 4: Simplify right side
    4,985.92x = 19,763,479.89
  5. Step 5: Solve for x
    x = 19,763,479.89/4,985.92
  6. Step 6: Final answer
    x = 3,963.86

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1.5x scale

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.