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Finding the Fourth Proportional to 23,480.70, 35,224.11 and 7,680.21

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Solution

The fourth proportional to 23,480.70, 35,224.11 and 7,680.21 is: 11,521.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,480.70 : 35,224.11 = 7,680.21 : x
  2. Step 2: Convert to fraction form
    23,480.70/35,224.11 = 7,680.21/x
  3. Step 3: Cross multiply
    23,480.70x = 35,224.11 × 7,680.21
  4. Step 4: Simplify right side
    23,480.70x = 270,528,561.86
  5. Step 5: Solve for x
    x = 270,528,561.86/23,480.70
  6. Step 6: Final answer
    x = 11,521.32

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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.