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Finding the Fourth Proportional to 18,200.70, 27,264.60 and 12,295.80

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Solution

The fourth proportional to 18,200.70, 27,264.60 and 12,295.80 is: 18,419.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,200.70 : 27,264.60 = 12,295.80 : x
  2. Step 2: Convert to fraction form
    18,200.70/27,264.60 = 12,295.80/x
  3. Step 3: Cross multiply
    18,200.70x = 27,264.60 × 12,295.80
  4. Step 4: Simplify right side
    18,200.70x = 335,240,068.68
  5. Step 5: Solve for x
    x = 335,240,068.68/18,200.70
  6. Step 6: Final answer
    x = 18,419.08

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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.