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Finding the Fourth Proportional to 21,754.70, 32,636.14 and 6,959.65

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Solution

The fourth proportional to 21,754.70, 32,636.14 and 6,959.65 is: 10,440.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,754.70 : 32,636.14 = 6,959.65 : x
  2. Step 2: Convert to fraction form
    21,754.70/32,636.14 = 6,959.65/x
  3. Step 3: Cross multiply
    21,754.70x = 32,636.14 × 6,959.65
  4. Step 4: Simplify right side
    21,754.70x = 227,136,012.76
  5. Step 5: Solve for x
    x = 227,136,012.76/21,754.70
  6. Step 6: Final answer
    x = 10,440.78

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1.5x scale

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.