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Finding the Fourth Proportional to 27,053.10, 40,579.65 and 20,492.10

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Solution

The fourth proportional to 27,053.10, 40,579.65 and 20,492.10 is: 30,738.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,053.10 : 40,579.65 = 20,492.10 : x
  2. Step 2: Convert to fraction form
    27,053.10/40,579.65 = 20,492.10/x
  3. Step 3: Cross multiply
    27,053.10x = 40,579.65 × 20,492.10
  4. Step 4: Simplify right side
    27,053.10x = 831,562,245.77
  5. Step 5: Solve for x
    x = 831,562,245.77/27,053.10
  6. Step 6: Final answer
    x = 30,738.15

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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.