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Finding the Fourth Proportional to 18,595.62, 27,892.08 and 6,115.50

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Solution

The fourth proportional to 18,595.62, 27,892.08 and 6,115.50 is: 9,172.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,595.62 : 27,892.08 = 6,115.50 : x
  2. Step 2: Convert to fraction form
    18,595.62/27,892.08 = 6,115.50/x
  3. Step 3: Cross multiply
    18,595.62x = 27,892.08 × 6,115.50
  4. Step 4: Simplify right side
    18,595.62x = 170,574,015.24
  5. Step 5: Solve for x
    x = 170,574,015.24/18,595.62
  6. Step 6: Final answer
    x = 9,172.81

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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.