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Finding the Fourth Proportional to 21,799.62, 32,703.06 and 8,652.06

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Solution

The fourth proportional to 21,799.62, 32,703.06 and 8,652.06 is: 12,979.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,799.62 : 32,703.06 = 8,652.06 : x
  2. Step 2: Convert to fraction form
    21,799.62/32,703.06 = 8,652.06/x
  3. Step 3: Cross multiply
    21,799.62x = 32,703.06 × 8,652.06
  4. Step 4: Simplify right side
    21,799.62x = 282,948,837.30
  5. Step 5: Solve for x
    x = 282,948,837.30/21,799.62
  6. Step 6: Final answer
    x = 12,979.53

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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.