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Finding the Fourth Proportional to 12,563.52, 17,336.64 and 6,974.40

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Solution

The fourth proportional to 12,563.52, 17,336.64 and 6,974.40 is: 9,624.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,563.52 : 17,336.64 = 6,974.40 : x
  2. Step 2: Convert to fraction form
    12,563.52/17,336.64 = 6,974.40/x
  3. Step 3: Cross multiply
    12,563.52x = 17,336.64 × 6,974.40
  4. Step 4: Simplify right side
    12,563.52x = 120,912,662.02
  5. Step 5: Solve for x
    x = 120,912,662.02/12,563.52
  6. Step 6: Final answer
    x = 9,624.11

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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.