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Finding the Fourth Proportional to 14,640.96, 21,960.12 and 4,110.12

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Solution

The fourth proportional to 14,640.96, 21,960.12 and 4,110.12 is: 6,164.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,640.96 : 21,960.12 = 4,110.12 : x
  2. Step 2: Convert to fraction form
    14,640.96/21,960.12 = 4,110.12/x
  3. Step 3: Cross multiply
    14,640.96x = 21,960.12 × 4,110.12
  4. Step 4: Simplify right side
    14,640.96x = 90,258,728.41
  5. Step 5: Solve for x
    x = 90,258,728.41/14,640.96
  6. Step 6: Final answer
    x = 6,164.81

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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.