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Finding the Fourth Proportional to 18,335.30, 27,511.78 and 10,015.08

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Solution

The fourth proportional to 18,335.30, 27,511.78 and 10,015.08 is: 15,027.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,335.30 : 27,511.78 = 10,015.08 : x
  2. Step 2: Convert to fraction form
    18,335.30/27,511.78 = 10,015.08/x
  3. Step 3: Cross multiply
    18,335.30x = 27,511.78 × 10,015.08
  4. Step 4: Simplify right side
    18,335.30x = 275,532,677.64
  5. Step 5: Solve for x
    x = 275,532,677.64/18,335.30
  6. Step 6: Final answer
    x = 15,027.44

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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.