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Finding the Fourth Proportional to 28,462.50, 42,705.09 and 14,414.94

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Solution

The fourth proportional to 28,462.50, 42,705.09 and 14,414.94 is: 21,628.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,462.50 : 42,705.09 = 14,414.94 : x
  2. Step 2: Convert to fraction form
    28,462.50/42,705.09 = 14,414.94/x
  3. Step 3: Cross multiply
    28,462.50x = 42,705.09 × 14,414.94
  4. Step 4: Simplify right side
    28,462.50x = 615,591,310.04
  5. Step 5: Solve for x
    x = 615,591,310.04/28,462.50
  6. Step 6: Final answer
    x = 21,628.15

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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.