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Finding the Fourth Proportional to 23,712.80, 35,568.78 and 7,072.88

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Solution

The fourth proportional to 23,712.80, 35,568.78 and 7,072.88 is: 10,609.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,712.80 : 35,568.78 = 7,072.88 : x
  2. Step 2: Convert to fraction form
    23,712.80/35,568.78 = 7,072.88/x
  3. Step 3: Cross multiply
    23,712.80x = 35,568.78 × 7,072.88
  4. Step 4: Simplify right side
    23,712.80x = 251,573,534.84
  5. Step 5: Solve for x
    x = 251,573,534.84/23,712.80
  6. Step 6: Final answer
    x = 10,609.19

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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.