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Finding the Fourth Proportional to 21,995.00, 32,992.04 and 5,355.13

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Solution

The fourth proportional to 21,995.00, 32,992.04 and 5,355.13 is: 8,032.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,995.00 : 32,992.04 = 5,355.13 : x
  2. Step 2: Convert to fraction form
    21,995.00/32,992.04 = 5,355.13/x
  3. Step 3: Cross multiply
    21,995.00x = 32,992.04 × 5,355.13
  4. Step 4: Simplify right side
    21,995.00x = 176,676,594.07
  5. Step 5: Solve for x
    x = 176,676,594.07/21,995.00
  6. Step 6: Final answer
    x = 8,032.58

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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.