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Finding the Fourth Proportional to 12,251.46, 16,907.18 and 6,946.16

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Solution

The fourth proportional to 12,251.46, 16,907.18 and 6,946.16 is: 9,585.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251.46 : 16,907.18 = 6,946.16 : x
  2. Step 2: Convert to fraction form
    12,251.46/16,907.18 = 6,946.16/x
  3. Step 3: Cross multiply
    12,251.46x = 16,907.18 × 6,946.16
  4. Step 4: Simplify right side
    12,251.46x = 117,439,977.43
  5. Step 5: Solve for x
    x = 117,439,977.43/12,251.46
  6. Step 6: Final answer
    x = 9,585.79

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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.