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Finding the Fourth Proportional to 21,676.08, 32,496.84 and 8,526

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Solution

The fourth proportional to 21,676.08, 32,496.84 and 8,526 is: 12,782.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,676.08 : 32,496.84 = 8,526 : x
  2. Step 2: Convert to fraction form
    21,676.08/32,496.84 = 8,526/x
  3. Step 3: Cross multiply
    21,676.08x = 32,496.84 × 8,526
  4. Step 4: Simplify right side
    21,676.08x = 277,068,057.84
  5. Step 5: Solve for x
    x = 277,068,057.84/21,676.08
  6. Step 6: Final answer
    x = 12,782.20

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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.