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Finding the Fourth Proportional to 23,234.60, 34,978.33 and 21,167.88

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Solution

The fourth proportional to 23,234.60, 34,978.33 and 21,167.88 is: 31,867.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,234.60 : 34,978.33 = 21,167.88 : x
  2. Step 2: Convert to fraction form
    23,234.60/34,978.33 = 21,167.88/x
  3. Step 3: Cross multiply
    23,234.60x = 34,978.33 × 21,167.88
  4. Step 4: Simplify right side
    23,234.60x = 740,417,184.08
  5. Step 5: Solve for x
    x = 740,417,184.08/23,234.60
  6. Step 6: Final answer
    x = 31,867.01

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.