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Finding the Fourth Proportional to 15,654.22, 23,485.17 and 4,561

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Solution

The fourth proportional to 15,654.22, 23,485.17 and 4,561 is: 6,842.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,654.22 : 23,485.17 = 4,561 : x
  2. Step 2: Convert to fraction form
    15,654.22/23,485.17 = 4,561/x
  3. Step 3: Cross multiply
    15,654.22x = 23,485.17 × 4,561
  4. Step 4: Simplify right side
    15,654.22x = 107,115,860.37
  5. Step 5: Solve for x
    x = 107,115,860.37/15,654.22
  6. Step 6: Final answer
    x = 6,842.62

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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.