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Finding the Fourth Proportional to 19,752.33, 27,258.15 and 11,799.21

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Solution

The fourth proportional to 19,752.33, 27,258.15 and 11,799.21 is: 16,282.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,752.33 : 27,258.15 = 11,799.21 : x
  2. Step 2: Convert to fraction form
    19,752.33/27,258.15 = 11,799.21/x
  3. Step 3: Cross multiply
    19,752.33x = 27,258.15 × 11,799.21
  4. Step 4: Simplify right side
    19,752.33x = 321,624,636.06
  5. Step 5: Solve for x
    x = 321,624,636.06/19,752.33
  6. Step 6: Final answer
    x = 16,282.87

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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.