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Finding the Fourth Proportional to 12,333.60, 18,502.80 and 3,568.80

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Solution

The fourth proportional to 12,333.60, 18,502.80 and 3,568.80 is: 5,353.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,333.60 : 18,502.80 = 3,568.80 : x
  2. Step 2: Convert to fraction form
    12,333.60/18,502.80 = 3,568.80/x
  3. Step 3: Cross multiply
    12,333.60x = 18,502.80 × 3,568.80
  4. Step 4: Simplify right side
    12,333.60x = 66,032,792.64
  5. Step 5: Solve for x
    x = 66,032,792.64/12,333.60
  6. Step 6: Final answer
    x = 5,353.89

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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.