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Finding the Fourth Proportional to 21,754.46, 32,635.77 and 6,959.40

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Solution

The fourth proportional to 21,754.46, 32,635.77 and 6,959.40 is: 10,440.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,754.46 : 32,635.77 = 6,959.40 : x
  2. Step 2: Convert to fraction form
    21,754.46/32,635.77 = 6,959.40/x
  3. Step 3: Cross multiply
    21,754.46x = 32,635.77 × 6,959.40
  4. Step 4: Simplify right side
    21,754.46x = 227,125,342.94
  5. Step 5: Solve for x
    x = 227,125,342.94/21,754.46
  6. Step 6: Final answer
    x = 10,440.41

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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.