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Finding the Fourth Proportional to 18,595.54, 27,891.15 and 7,507.18

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Solution

The fourth proportional to 18,595.54, 27,891.15 and 7,507.18 is: 11,259.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,595.54 : 27,891.15 = 7,507.18 : x
  2. Step 2: Convert to fraction form
    18,595.54/27,891.15 = 7,507.18/x
  3. Step 3: Cross multiply
    18,595.54x = 27,891.15 × 7,507.18
  4. Step 4: Simplify right side
    18,595.54x = 209,383,883.46
  5. Step 5: Solve for x
    x = 209,383,883.46/18,595.54
  6. Step 6: Final answer
    x = 11,259.90

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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.