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Finding the Fourth Proportional to 13,241.25, 18,272.93 and 8,273.25

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Solution

The fourth proportional to 13,241.25, 18,272.93 and 8,273.25 is: 11,417.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,241.25 : 18,272.93 = 8,273.25 : x
  2. Step 2: Convert to fraction form
    13,241.25/18,272.93 = 8,273.25/x
  3. Step 3: Cross multiply
    13,241.25x = 18,272.93 × 8,273.25
  4. Step 4: Simplify right side
    13,241.25x = 151,176,476.76
  5. Step 5: Solve for x
    x = 151,176,476.76/13,241.25
  6. Step 6: Final answer
    x = 11,417.09

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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.