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Finding the Fourth Proportional to 20,224.76, 27,902.07 and 12,264.08

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Solution

The fourth proportional to 20,224.76, 27,902.07 and 12,264.08 is: 16,919.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,224.76 : 27,902.07 = 12,264.08 : x
  2. Step 2: Convert to fraction form
    20,224.76/27,902.07 = 12,264.08/x
  3. Step 3: Cross multiply
    20,224.76x = 27,902.07 × 12,264.08
  4. Step 4: Simplify right side
    20,224.76x = 342,193,079.14
  5. Step 5: Solve for x
    x = 342,193,079.14/20,224.76
  6. Step 6: Final answer
    x = 16,919.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.