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Finding the Fourth Proportional to 7,751.76, 10,702.36 and 5,103.73

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Solution

The fourth proportional to 7,751.76, 10,702.36 and 5,103.73 is: 7,046.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,751.76 : 10,702.36 = 5,103.73 : x
  2. Step 2: Convert to fraction form
    7,751.76/10,702.36 = 5,103.73/x
  3. Step 3: Cross multiply
    7,751.76x = 10,702.36 × 5,103.73
  4. Step 4: Simplify right side
    7,751.76x = 54,621,955.80
  5. Step 5: Solve for x
    x = 54,621,955.80/7,751.76
  6. Step 6: Final answer
    x = 7,046.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.