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Finding the Fourth Proportional to 12,624.68, 17,422.17 and 6,959.64

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Solution

The fourth proportional to 12,624.68, 17,422.17 and 6,959.64 is: 9,604.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,624.68 : 17,422.17 = 6,959.64 : x
  2. Step 2: Convert to fraction form
    12,624.68/17,422.17 = 6,959.64/x
  3. Step 3: Cross multiply
    12,624.68x = 17,422.17 × 6,959.64
  4. Step 4: Simplify right side
    12,624.68x = 121,252,031.22
  5. Step 5: Solve for x
    x = 121,252,031.22/12,624.68
  6. Step 6: Final answer
    x = 9,604.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.