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Finding the Fourth Proportional to 11,948.60, 16,469.88 and 9,426.44

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Solution

The fourth proportional to 11,948.60, 16,469.88 and 9,426.44 is: 12,993.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,948.60 : 16,469.88 = 9,426.44 : x
  2. Step 2: Convert to fraction form
    11,948.60/16,469.88 = 9,426.44/x
  3. Step 3: Cross multiply
    11,948.60x = 16,469.88 × 9,426.44
  4. Step 4: Simplify right side
    11,948.60x = 155,252,335.63
  5. Step 5: Solve for x
    x = 155,252,335.63/11,948.60
  6. Step 6: Final answer
    x = 12,993.35

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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.