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Finding the Fourth Proportional to 21,586.56, 32,359.56 and 7,537.92

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Solution

The fourth proportional to 21,586.56, 32,359.56 and 7,537.92 is: 11,299.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,586.56 : 32,359.56 = 7,537.92 : x
  2. Step 2: Convert to fraction form
    21,586.56/32,359.56 = 7,537.92/x
  3. Step 3: Cross multiply
    21,586.56x = 32,359.56 × 7,537.92
  4. Step 4: Simplify right side
    21,586.56x = 243,923,774.52
  5. Step 5: Solve for x
    x = 243,923,774.52/21,586.56
  6. Step 6: Final answer
    x = 11,299.80

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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.