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Finding the Fourth Proportional to 22,266.60, 30,727.94 and 12,330.60

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Solution

The fourth proportional to 22,266.60, 30,727.94 and 12,330.60 is: 17,016.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,266.60 : 30,727.94 = 12,330.60 : x
  2. Step 2: Convert to fraction form
    22,266.60/30,727.94 = 12,330.60/x
  3. Step 3: Cross multiply
    22,266.60x = 30,727.94 × 12,330.60
  4. Step 4: Simplify right side
    22,266.60x = 378,893,936.96
  5. Step 5: Solve for x
    x = 378,893,936.96/22,266.60
  6. Step 6: Final answer
    x = 17,016.25

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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.