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Finding the Fourth Proportional to 27,057.60, 40,586.40 and 20,496.60

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Solution

The fourth proportional to 27,057.60, 40,586.40 and 20,496.60 is: 30,744.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,057.60 : 40,586.40 = 20,496.60 : x
  2. Step 2: Convert to fraction form
    27,057.60/40,586.40 = 20,496.60/x
  3. Step 3: Cross multiply
    27,057.60x = 40,586.40 × 20,496.60
  4. Step 4: Simplify right side
    27,057.60x = 831,883,206.24
  5. Step 5: Solve for x
    x = 831,883,206.24/27,057.60
  6. Step 6: Final answer
    x = 30,744.90

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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.