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Finding the Fourth Proportional to 18,532.78, 27,799.23 and 4,492.75

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Solution

The fourth proportional to 18,532.78, 27,799.23 and 4,492.75 is: 6,739.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,532.78 : 27,799.23 = 4,492.75 : x
  2. Step 2: Convert to fraction form
    18,532.78/27,799.23 = 4,492.75/x
  3. Step 3: Cross multiply
    18,532.78x = 27,799.23 × 4,492.75
  4. Step 4: Simplify right side
    18,532.78x = 124,894,840.35
  5. Step 5: Solve for x
    x = 124,894,840.35/18,532.78
  6. Step 6: Final answer
    x = 6,739.13

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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.