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Finding the Fourth Proportional to 7,255.25, 10,883 and 3,151.25

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Solution

The fourth proportional to 7,255.25, 10,883 and 3,151.25 is: 4,726.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,255.25 : 10,883 = 3,151.25 : x
  2. Step 2: Convert to fraction form
    7,255.25/10,883 = 3,151.25/x
  3. Step 3: Cross multiply
    7,255.25x = 10,883 × 3,151.25
  4. Step 4: Simplify right side
    7,255.25x = 34,295,053.75
  5. Step 5: Solve for x
    x = 34,295,053.75/7,255.25
  6. Step 6: Final answer
    x = 4,726.93

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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.