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Finding the Fourth Proportional to 17,765.72, 26,654.01 and 10,657.84

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Solution

The fourth proportional to 17,765.72, 26,654.01 and 10,657.84 is: 15,990.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,765.72 : 26,654.01 = 10,657.84 : x
  2. Step 2: Convert to fraction form
    17,765.72/26,654.01 = 10,657.84/x
  3. Step 3: Cross multiply
    17,765.72x = 26,654.01 × 10,657.84
  4. Step 4: Simplify right side
    17,765.72x = 284,074,040.67
  5. Step 5: Solve for x
    x = 284,074,040.67/17,765.72
  6. Step 6: Final answer
    x = 15,990.01

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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.