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Finding the Fourth Proportional to 18,318.26, 27,492.98 and 7,232.80

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Solution

The fourth proportional to 18,318.26, 27,492.98 and 7,232.80 is: 10,855.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,318.26 : 27,492.98 = 7,232.80 : x
  2. Step 2: Convert to fraction form
    18,318.26/27,492.98 = 7,232.80/x
  3. Step 3: Cross multiply
    18,318.26x = 27,492.98 × 7,232.80
  4. Step 4: Simplify right side
    18,318.26x = 198,851,225.74
  5. Step 5: Solve for x
    x = 198,851,225.74/18,318.26
  6. Step 6: Final answer
    x = 10,855.36

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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.