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Finding the Fourth Proportional to 13,241.54, 18,278.54 and 7,935.33

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Solution

The fourth proportional to 13,241.54, 18,278.54 and 7,935.33 is: 10,953.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,241.54 : 18,278.54 = 7,935.33 : x
  2. Step 2: Convert to fraction form
    13,241.54/18,278.54 = 7,935.33/x
  3. Step 3: Cross multiply
    13,241.54x = 18,278.54 × 7,935.33
  4. Step 4: Simplify right side
    13,241.54x = 145,046,275.69
  5. Step 5: Solve for x
    x = 145,046,275.69/13,241.54
  6. Step 6: Final answer
    x = 10,953.88

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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.