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Finding the Fourth Proportional to 17,840.80, 26,777.64 and 9,082

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Solution

The fourth proportional to 17,840.80, 26,777.64 and 9,082 is: 13,631.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,840.80 : 26,777.64 = 9,082 : x
  2. Step 2: Convert to fraction form
    17,840.80/26,777.64 = 9,082/x
  3. Step 3: Cross multiply
    17,840.80x = 26,777.64 × 9,082
  4. Step 4: Simplify right side
    17,840.80x = 243,194,526.48
  5. Step 5: Solve for x
    x = 243,194,526.48/17,840.80
  6. Step 6: Final answer
    x = 13,631.37

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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.