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Finding the Fourth Proportional to 11,258.80, 16,855.80 and 10,092.40

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Solution

The fourth proportional to 11,258.80, 16,855.80 and 10,092.40 is: 15,109.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,258.80 : 16,855.80 = 10,092.40 : x
  2. Step 2: Convert to fraction form
    11,258.80/16,855.80 = 10,092.40/x
  3. Step 3: Cross multiply
    11,258.80x = 16,855.80 × 10,092.40
  4. Step 4: Simplify right side
    11,258.80x = 170,115,475.92
  5. Step 5: Solve for x
    x = 170,115,475.92/11,258.80
  6. Step 6: Final answer
    x = 15,109.56

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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.