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Finding the Fourth Proportional to 18,492.66, 27,742.71 and 6,805.62

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Solution

The fourth proportional to 18,492.66, 27,742.71 and 6,805.62 is: 10,209.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,492.66 : 27,742.71 = 6,805.62 : x
  2. Step 2: Convert to fraction form
    18,492.66/27,742.71 = 6,805.62/x
  3. Step 3: Cross multiply
    18,492.66x = 27,742.71 × 6,805.62
  4. Step 4: Simplify right side
    18,492.66x = 188,806,342.03
  5. Step 5: Solve for x
    x = 188,806,342.03/18,492.66
  6. Step 6: Final answer
    x = 10,209.80

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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.