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Finding the Fourth Proportional to 8,355.25, 11,530.25 and 4,629.97

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Solution

The fourth proportional to 8,355.25, 11,530.25 and 4,629.97 is: 6,389.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,355.25 : 11,530.25 = 4,629.97 : x
  2. Step 2: Convert to fraction form
    8,355.25/11,530.25 = 4,629.97/x
  3. Step 3: Cross multiply
    8,355.25x = 11,530.25 × 4,629.97
  4. Step 4: Simplify right side
    8,355.25x = 53,384,711.59
  5. Step 5: Solve for x
    x = 53,384,711.59/8,355.25
  6. Step 6: Final answer
    x = 6,389.36

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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.