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Finding the Fourth Proportional to 21,551.73, 32,342.47 and 7,511.88

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Solution

The fourth proportional to 21,551.73, 32,342.47 and 7,511.88 is: 11,273.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,551.73 : 32,342.47 = 7,511.88 : x
  2. Step 2: Convert to fraction form
    21,551.73/32,342.47 = 7,511.88/x
  3. Step 3: Cross multiply
    21,551.73x = 32,342.47 × 7,511.88
  4. Step 4: Simplify right side
    21,551.73x = 242,952,635.13
  5. Step 5: Solve for x
    x = 242,952,635.13/21,551.73
  6. Step 6: Final answer
    x = 11,273.00

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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.