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Finding the Fourth Proportional to 7,963.03, 11,949.35 and 2,772.55

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Solution

The fourth proportional to 7,963.03, 11,949.35 and 2,772.55 is: 4,160.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,963.03 : 11,949.35 = 2,772.55 : x
  2. Step 2: Convert to fraction form
    7,963.03/11,949.35 = 2,772.55/x
  3. Step 3: Cross multiply
    7,963.03x = 11,949.35 × 2,772.55
  4. Step 4: Simplify right side
    7,963.03x = 33,130,170.34
  5. Step 5: Solve for x
    x = 33,130,170.34/7,963.03
  6. Step 6: Final answer
    x = 4,160.50

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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.