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Finding the Fourth Proportional to 18,171.84, 27,258.84 and 7,076.46

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Solution

The fourth proportional to 18,171.84, 27,258.84 and 7,076.46 is: 10,615.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,171.84 : 27,258.84 = 7,076.46 : x
  2. Step 2: Convert to fraction form
    18,171.84/27,258.84 = 7,076.46/x
  3. Step 3: Cross multiply
    18,171.84x = 27,258.84 × 7,076.46
  4. Step 4: Simplify right side
    18,171.84x = 192,896,090.91
  5. Step 5: Solve for x
    x = 192,896,090.91/18,171.84
  6. Step 6: Final answer
    x = 10,615.11

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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.