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Finding the Fourth Proportional to 23,681.70, 32,680.24 and 12,926.20

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Solution

The fourth proportional to 23,681.70, 32,680.24 and 12,926.20 is: 17,837.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,681.70 : 32,680.24 = 12,926.20 : x
  2. Step 2: Convert to fraction form
    23,681.70/32,680.24 = 12,926.20/x
  3. Step 3: Cross multiply
    23,681.70x = 32,680.24 × 12,926.20
  4. Step 4: Simplify right side
    23,681.70x = 422,431,318.29
  5. Step 5: Solve for x
    x = 422,431,318.29/23,681.70
  6. Step 6: Final answer
    x = 17,837.88

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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.