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Finding the Fourth Proportional to 17,580.99, 26,374.53 and 7,721.27

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Solution

The fourth proportional to 17,580.99, 26,374.53 and 7,721.27 is: 11,583.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,580.99 : 26,374.53 = 7,721.27 : x
  2. Step 2: Convert to fraction form
    17,580.99/26,374.53 = 7,721.27/x
  3. Step 3: Cross multiply
    17,580.99x = 26,374.53 × 7,721.27
  4. Step 4: Simplify right side
    17,580.99x = 203,644,735.38
  5. Step 5: Solve for x
    x = 203,644,735.38/17,580.99
  6. Step 6: Final answer
    x = 11,583.23

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1.5x scale

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.