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Finding the Fourth Proportional to 11,480.90, 15,845.37 and 7,007.24

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Solution

The fourth proportional to 11,480.90, 15,845.37 and 7,007.24 is: 9,671.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,480.90 : 15,845.37 = 7,007.24 : x
  2. Step 2: Convert to fraction form
    11,480.90/15,845.37 = 7,007.24/x
  3. Step 3: Cross multiply
    11,480.90x = 15,845.37 × 7,007.24
  4. Step 4: Simplify right side
    11,480.90x = 111,032,350.09
  5. Step 5: Solve for x
    x = 111,032,350.09/11,480.90
  6. Step 6: Final answer
    x = 9,671.05

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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.