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Finding the Fourth Proportional to 21,752.15, 32,628.29 and 6,962.09

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Solution

The fourth proportional to 21,752.15, 32,628.29 and 6,962.09 is: 10,443.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,752.15 : 32,628.29 = 6,962.09 : x
  2. Step 2: Convert to fraction form
    21,752.15/32,628.29 = 6,962.09/x
  3. Step 3: Cross multiply
    21,752.15x = 32,628.29 × 6,962.09
  4. Step 4: Simplify right side
    21,752.15x = 227,160,893.57
  5. Step 5: Solve for x
    x = 227,160,893.57/21,752.15
  6. Step 6: Final answer
    x = 10,443.15

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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.