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Finding the Fourth Proportional to 18,328.01, 27,492.12 and 5,180.49

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Solution

The fourth proportional to 18,328.01, 27,492.12 and 5,180.49 is: 7,770.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,328.01 : 27,492.12 = 5,180.49 : x
  2. Step 2: Convert to fraction form
    18,328.01/27,492.12 = 5,180.49/x
  3. Step 3: Cross multiply
    18,328.01x = 27,492.12 × 5,180.49
  4. Step 4: Simplify right side
    18,328.01x = 142,422,652.74
  5. Step 5: Solve for x
    x = 142,422,652.74/18,328.01
  6. Step 6: Final answer
    x = 7,770.77

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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.