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Finding the Fourth Proportional to 21,751.10, 32,626.05 and 6,959.80

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Solution

The fourth proportional to 21,751.10, 32,626.05 and 6,959.80 is: 10,439.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,751.10 : 32,626.05 = 6,959.80 : x
  2. Step 2: Convert to fraction form
    21,751.10/32,626.05 = 6,959.80/x
  3. Step 3: Cross multiply
    21,751.10x = 32,626.05 × 6,959.80
  4. Step 4: Simplify right side
    21,751.10x = 227,070,961.11
  5. Step 5: Solve for x
    x = 227,070,961.11/21,751.10
  6. Step 6: Final answer
    x = 10,439.52

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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.