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Finding the Fourth Proportional to 21,673.95, 32,507.97 and 5,879.99

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Solution

The fourth proportional to 21,673.95, 32,507.97 and 5,879.99 is: 8,819.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,673.95 : 32,507.97 = 5,879.99 : x
  2. Step 2: Convert to fraction form
    21,673.95/32,507.97 = 5,879.99/x
  3. Step 3: Cross multiply
    21,673.95x = 32,507.97 × 5,879.99
  4. Step 4: Simplify right side
    21,673.95x = 191,146,538.52
  5. Step 5: Solve for x
    x = 191,146,538.52/21,673.95
  6. Step 6: Final answer
    x = 8,819.18

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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.