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Finding the Fourth Proportional to 9,367.60, 12,942.48 and 9,275.44

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Solution

The fourth proportional to 9,367.60, 12,942.48 and 9,275.44 is: 12,815.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,367.60 : 12,942.48 = 9,275.44 : x
  2. Step 2: Convert to fraction form
    9,367.60/12,942.48 = 9,275.44/x
  3. Step 3: Cross multiply
    9,367.60x = 12,942.48 × 9,275.44
  4. Step 4: Simplify right side
    9,367.60x = 120,047,196.69
  5. Step 5: Solve for x
    x = 120,047,196.69/9,367.60
  6. Step 6: Final answer
    x = 12,815.15

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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.