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Finding the Fourth Proportional to 9,417.94, 12,994.12 and 6,729.97

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Solution

The fourth proportional to 9,417.94, 12,994.12 and 6,729.97 is: 9,285.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,417.94 : 12,994.12 = 6,729.97 : x
  2. Step 2: Convert to fraction form
    9,417.94/12,994.12 = 6,729.97/x
  3. Step 3: Cross multiply
    9,417.94x = 12,994.12 × 6,729.97
  4. Step 4: Simplify right side
    9,417.94x = 87,450,037.78
  5. Step 5: Solve for x
    x = 87,450,037.78/9,417.94
  6. Step 6: Final answer
    x = 9,285.47

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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.