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Finding the Fourth Proportional to 12,624.16, 17,423.97 and 8,375.51

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Solution

The fourth proportional to 12,624.16, 17,423.97 and 8,375.51 is: 11,559.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,624.16 : 17,423.97 = 8,375.51 : x
  2. Step 2: Convert to fraction form
    12,624.16/17,423.97 = 8,375.51/x
  3. Step 3: Cross multiply
    12,624.16x = 17,423.97 × 8,375.51
  4. Step 4: Simplify right side
    12,624.16x = 145,934,634.97
  5. Step 5: Solve for x
    x = 145,934,634.97/12,624.16
  6. Step 6: Final answer
    x = 11,559.95

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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.